last executing test programs: 371.818339ms ago: executing program 3 (id=4): r0 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000040), 0x802, 0x0) syz_mount_image$ext4(&(0x7f0000000780)='ext4\x00', &(0x7f0000000480)='./file1\x00', 0x0, &(0x7f0000000180)={[{@delalloc}, {@noload}, {@acl}, {@mb_optimize_scan={'mb_optimize_scan', 0x3d, 0x1}}]}, 0x1, 0x783, &(0x7f0000001000)="$eJzs3c9rHFUcAPDvbJKmSauJIGg9BQQNlG5Mja2Ch4oHESwU9Gy7bLahZpMt2U1pQg4tIngRVDwIeunZH/Xm1R9X/S88SEvVtFjxIJHZH+222U03bXY3kM8HXva9mdm89903P97sDDsB7FkT6Z9MxKGI+DiJGKtPTyJiqJobjDhRW+72+lo+TUlsbLz9Z1Jd5tb6Wj6a3pM6UC88HRE/fRBxOLO53vLK6nyuWCws1ctTlYXzU+WV1SPnFnJzhbnC4rHpmZmjx186fmznYv3719WD1z954/lvT/z7/lNXP/o5iRNxsD6vOY6dMhET9c9kKP0I7/H6TlfWZ0m/G8BDSTfNgdpWHodiLAaquTZGetkyAKBbNgCAPSgxBgCAPabxPcCt9bV8I/X3G4neuvFaROyvxd+4vlmbM1i/Zre/eh109FZyz5WRJCLGd6D+iYj48vt3v05T1PvBtTSgFy5djogz4xOb9//JpnsWtuuFrWZuDFdfJu6bvNeOP9BPP6Tjn5dbjf8yd8Y/0WL8M9xi230YD97+M9d2oJq20vHfq033tt1uir9ufKBeeqw65htKzp4rFtJ92+MRMRlDw2l5urpo65Hb5M3/brarv3n899en732V1p++3l0ic21w+N73zOYquUeNu+HG5YhnBlvFn9zp/6TN+PdUh3W8+cqHX7Sbl8afxttIm+Pvro0rEc+17P+7fZlseX/iVHV1mGqsFC1899vno+3qb+7/NKX1N84FeiHt/9Gt4x9Pmu/XLG+/jl+ujP3Ybt6D42+9/u9L3qnm99WnXcxVKkvTEfuStzZPP3r3vY1yY/k0/slnW2//tWpbr//pOeGZDuMfvP7HNw8ff3el8c9uq/+3n7l6e36gXf2d9f9MNTdZn9LJ/q/TBj7KZwcAAAAAAAAAAAAAAAAAAAAAAAAAncpExMFIMtk7+Uwmm609w/vJGM0US+XK4bOl5cXZqD4rezyGMo2fuhxr+j3U6frv4TfKR+8rvxgRT0TEZ8Mj1XI2XyrO9jt4AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAKg70Ob5/6nfh/vdOgCga/b3uwEAQM85/gPA3rO94/9I19oBAPSO838A2Hs6Pv6f6W47AIDecf4PAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAl506eTJNG/+sr+XT8uyFleX50oUjs4XyfHZhOZ/Nl5bOZ+dKpbliIZsvLbT9R5dqL8VS6fxMLC5fnKoUypWp8srq6YXS8mLl9LmF3FzhdGGoZ5EBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQOfKK6vzuWKxsCSzZWZkdzRj12QGY1c0Q6Zrmea9xEj/dlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAu9z/AQAA//+MoS4e") prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x88}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x7) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) prctl$PR_SET_MM_MAP(0x26, 0xe, 0x0, 0x0) ioprio_set$pid(0x1, r1, 0x2007) sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x6) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_int(r4, 0x6, 0x13, 0x0, 0x0) connect$inet6(r4, 0x0, 0x0) rt_tgsigqueueinfo(r1, 0x0, 0x15, 0x0) getsockopt$inet6_tcp_TCP_ZEROCOPY_RECEIVE(r4, 0x6, 0x23, 0x0, &(0x7f0000000000)=0x4d) ioctl$EXT4_IOC_GET_ES_CACHE(0xffffffffffffffff, 0xc020662a, 0x0) write$uinput_user_dev(r0, &(0x7f0000000ec0)={'syz0\x00', {0x0, 0x0, 0x0, 0x9}, 0x30, [0x0, 0x0, 0x0, 0x0, 0x0, 0x7ff, 0x0, 0x0, 0x0, 0x1, 0x7, 0x0, 0x0, 0x0, 0x5, 0x1, 0x2, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x0, 0x80008, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7e3502c9], [0x0, 0x0, 0x8, 0xb16, 0x0, 0x200000, 0x0, 0x0, 0x0, 0x0, 0x7ff, 0x0, 0x0, 0x0, 0x2, 0x0, 0x9, 0x20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xd, 0x1000, 0x0, 0xf, 0x0, 0x2, 0x0, 0x0, 0x0, 0xfffffffe, 0x4, 0x1, 0x0, 0x0, 0x0, 0xfffffffd, 0xfffffffd, 0x0, 0xfffffff9, 0x0, 0x80000000, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffd, 0x0, 0xe], [0x7, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x0, 0xddc, 0x0, 0x0, 0xfffffffc, 0xff, 0x0, 0xda4a, 0x0, 0x0, 0x0, 0x0, 0x7683, 0x0, 0x2, 0xe, 0x8000001, 0x0, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000, 0x7ffffff, 0x0, 0x0, 0xffffffff, 0x2, 0x0, 0x0, 0x0, 0x0, 0xfffffffc, 0x0, 0x7, 0x4], [0xfffffffc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc045, 0x0, 0x0, 0x0, 0x1000, 0x0, 0x80, 0x0, 0x3, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffff, 0x0, 0x0, 0x0, 0x200000, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffe, 0x0, 0xfffffffe, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8b9, 0x0, 0x2, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x4, 0x4, 0x0, 0x0, 0xfffffffd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5]}, 0x45c) ioctl$XFS_IOC_GETVERSION(r0, 0x80087601, &(0x7f0000000000)) r5 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x0) ioctl$OCFS2_IOC_RESVSP64(r5, 0x4030582a, 0x0) syz_genetlink_get_family_id$batadv(0x0, 0xffffffffffffffff) sendmsg$BATADV_CMD_TP_METER_CANCEL(r5, &(0x7f00000002c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000280)={0x0}, 0x1, 0x0, 0x0, 0x4008004}, 0x44008) write$uinput_user_dev(r0, 0x0, 0x0) capset(&(0x7f0000000040)={0x20080522}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x87, 0xffffffff, 0x2}) 176.910312ms ago: executing program 4 (id=5): r0 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000000), 0x802, 0x0) fsetxattr$system_posix_acl(r0, &(0x7f0000000140)='system.posix_acl_default\x00', &(0x7f0000006780)={{}, {0x1, 0x4}, [], {0x4, 0x2}, [], {0x10, 0x4}, {0x20, 0x3}}, 0x24, 0x3) 136.927792ms ago: executing program 1 (id=2): r0 = socket$inet6_tcp(0xa, 0x1, 0x0) bind$inet6(r0, &(0x7f0000000280)={0xa, 0x2, 0x0, @empty}, 0x1c) listen(r0, 0x2) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_int(r1, 0x6, 0x2000000000000022, &(0x7f0000000200)=0x1, 0x4) setsockopt$inet6_tcp_int(r0, 0x6, 0xa, &(0x7f0000000640)=0x652, 0x4) sendto$inet6(r1, &(0x7f00000002c0)="c4997d41", 0x4, 0x20000845, &(0x7f0000b63fe4)={0xa, 0x2, 0x0, @rand_addr, 0x5}, 0x1c) 160.1µs ago: executing program 4 (id=6): r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1) mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x4) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x10b) write(r1, &(0x7f0000000000)='7', 0x1) fstatfs(r1, 0x0) flock(r0, 0x2) 0s ago: executing program 2 (id=3): r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x0, @dev}, 0x2}}, 0x2e) r2 = socket$pppl2tp(0x18, 0x1, 0x1) connect$pppl2tp(r2, &(0x7f0000000000)=@pppol2tp={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x4e22, @rand_addr=0x1}, 0x2, 0x4}}, 0x26) ioctl$PPPIOCGL2TPSTATS(r2, 0x8004745a, 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.1.69' (ED25519) to the list of known hosts. [ 21.607002][ T28] audit: type=1400 audit(1790296317.076:64): avc: denied { mounton } for pid=279 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 21.610572][ T279] cgroup: Unknown subsys name 'net' [ 21.629684][ T28] audit: type=1400 audit(1790296317.076:65): avc: denied { mount } for pid=279 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 21.657038][ T28] audit: type=1400 audit(1790296317.116:66): avc: denied { unmount } for pid=279 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 21.657531][ T279] cgroup: Unknown subsys name 'devices' [ 21.804752][ T279] cgroup: Unknown subsys name 'hugetlb' [ 21.810403][ T279] cgroup: Unknown subsys name 'rlimit' [ 21.916180][ T28] audit: type=1400 audit(1790296317.386:67): avc: denied { setattr } for pid=279 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=258 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 21.939427][ T28] audit: type=1400 audit(1790296317.386:68): avc: denied { mounton } for pid=279 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 21.964979][ T28] audit: type=1400 audit(1790296317.386:69): avc: denied { mount } for pid=279 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 [ 21.995806][ T281] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). Setting up swapspace version 1, size = 127995904 bytes [ 22.005072][ T28] audit: type=1400 audit(1790296317.476:70): avc: denied { relabelto } for pid=281 comm="mkswap" name="swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 22.030533][ T28] audit: type=1400 audit(1790296317.476:71): avc: denied { write } for pid=281 comm="mkswap" path="/root/swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 22.058795][ T28] audit: type=1400 audit(1790296317.536:72): avc: denied { read } for pid=279 comm="syz-executor" name="swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 22.084413][ T28] audit: type=1400 audit(1790296317.536:73): avc: denied { open } for pid=279 comm="syz-executor" path="/root/swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 22.084568][ T279] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 23.468277][ T291] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.475453][ T291] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.483277][ T291] device bridge_slave_0 entered promiscuous mode [ 23.494261][ T288] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.501333][ T288] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.509065][ T288] device bridge_slave_0 entered promiscuous mode [ 23.517900][ T288] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.525017][ T288] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.532700][ T288] device bridge_slave_1 entered promiscuous mode [ 23.543607][ T291] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.550673][ T291] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.558256][ T291] device bridge_slave_1 entered promiscuous mode [ 23.632684][ T287] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.639773][ T287] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.647484][ T287] device bridge_slave_0 entered promiscuous mode [ 23.663151][ T287] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.670223][ T287] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.677728][ T287] device bridge_slave_1 entered promiscuous mode [ 23.723245][ T289] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.730318][ T289] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.737834][ T289] device bridge_slave_0 entered promiscuous mode [ 23.746859][ T289] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.753969][ T289] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.761451][ T289] device bridge_slave_1 entered promiscuous mode [ 23.799912][ T290] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.807249][ T290] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.814783][ T290] device bridge_slave_0 entered promiscuous mode [ 23.825525][ T290] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.832662][ T290] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.840207][ T290] device bridge_slave_1 entered promiscuous mode [ 23.939817][ T288] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.946910][ T288] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.954238][ T288] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.961287][ T288] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.000391][ T291] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.007510][ T291] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.014895][ T291] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.021965][ T291] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.056578][ T287] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.063723][ T287] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.071237][ T287] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.078384][ T287] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.108835][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.116643][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.124127][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.131419][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.138972][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.146365][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.154914][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 24.162661][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.197747][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.206074][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.214388][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.221424][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.229096][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.237581][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.244838][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.252462][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.260657][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.267756][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.275286][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.284176][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.292497][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.299544][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.314324][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.343516][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.351605][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.360016][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.368446][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.375544][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.383132][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.391280][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.398349][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.405754][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.414052][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.421081][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.428518][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.436835][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.443916][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.452076][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 24.475847][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 24.484280][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.493985][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 24.502078][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.510266][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 24.518544][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.526881][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 24.535049][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.543028][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 24.551021][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.584189][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 24.592239][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.601019][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 24.608555][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.616419][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 24.624917][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.633335][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.640360][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.647800][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 24.656131][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.664391][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.671426][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.678977][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 24.687389][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.695963][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 24.704246][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.712213][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 24.720619][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.728824][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 24.737364][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.746007][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.753633][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.761090][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 24.771171][ T288] device veth0_vlan entered promiscuous mode [ 24.785760][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.794473][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.801974][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.818350][ T291] device veth0_vlan entered promiscuous mode [ 24.824925][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 24.833625][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.841969][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 24.850354][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.858830][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 24.866972][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.875233][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 24.883401][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.891423][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.898985][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.907229][ T290] device veth0_vlan entered promiscuous mode [ 24.919684][ T288] device veth1_macvtap entered promiscuous mode [ 24.932150][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 24.940751][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.949369][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 24.957273][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 24.965693][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.974325][ T287] device veth0_vlan entered promiscuous mode [ 24.980609][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.988205][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 25.005411][ T290] device veth1_macvtap entered promiscuous mode [ 25.012999][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 25.021295][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 25.029890][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.038533][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 25.046898][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 25.055477][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 25.063870][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 25.073472][ T291] device veth1_macvtap entered promiscuous mode [ 25.092191][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 25.100250][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 25.108677][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.124178][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 25.133387][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 25.142249][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 25.143202][ T288] request_module fs-gadgetfs succeeded, but still no fs? [ 25.154058][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.185519][ T287] device veth1_macvtap entered promiscuous mode [ 25.200697][ T313] loop3: detected capacity change from 0 to 2048 [ 25.210488][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 25.219078][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 25.229202][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 25.238049][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 25.247609][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 25.255761][ T313] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. [ 25.259093][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 25.278982][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.287893][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 25.296509][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 25.343642][ T289] device veth0_vlan entered promiscuous mode [ 25.352469][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 25.360532][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 25.371656][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 25.379566][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 25.421474][ T289] device veth1_macvtap entered promiscuous mode [ 25.437216][ T314] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 25.463172][ T314] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 25.471828][ T314] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.480796][ T314] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 25.489591][ T314] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 25.582019][ T330] FAULT_INJECTION: forcing a failure. [ 25.582019][ T330] name failslab, interval 1, probability 0, space 0, times 1 [ 25.597481][ T323] ================================================================== [ 25.605590][ T323] BUG: KASAN: use-after-free in mutex_lock+0x86/0x1b0 [ 25.612585][ T323] Write of size 8 at addr ffff888133021950 by task syz.2.3/323 [ 25.620152][ T323] [ 25.622497][ T323] CPU: 0 PID: 323 Comm: syz.2.3 Not tainted syzkaller #0 [ 25.629543][ T323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 25.639634][ T323] Call Trace: [ 25.642936][ T323] [ 25.645888][ T323] __dump_stack+0x21/0x24 [ 25.650269][ T323] dump_stack_lvl+0x110/0x170 [ 25.654979][ T323] ? __cfi_dump_stack_lvl+0x8/0x8 [ 25.660036][ T323] ? mutex_lock+0x86/0x1b0 [ 25.664487][ T323] print_address_description+0x71/0x200 [ 25.670076][ T323] print_report+0x4a/0x60 [ 25.674717][ T323] kasan_report+0x122/0x150 [ 25.679262][ T323] ? mutex_lock+0x86/0x1b0 [ 25.683716][ T323] kasan_check_range+0x249/0x2a0 [ 25.688693][ T323] __kasan_check_write+0x14/0x20 [ 25.693669][ T323] mutex_lock+0x86/0x1b0 [ 25.697941][ T323] ? __cfi_mutex_lock+0x10/0x10 [ 25.702815][ T323] ? kfree+0x6f/0xf0 [ 25.706738][ T323] ? l2tp_session_put+0xaf/0x1a0 [ 25.711699][ T323] ? l2tp_session_delete+0x3df/0x4d0 [ 25.717099][ T323] pppol2tp_release+0x178/0x2b0 [ 25.721975][ T323] sock_close+0xc9/0x220 [ 25.726244][ T323] ? __cfi_sock_close+0x10/0x10 [ 25.731111][ T323] __fput+0x1fd/0x8f0 [ 25.735121][ T323] ____fput+0x15/0x20 [ 25.739129][ T323] task_work_run+0x1e1/0x250 [ 25.743741][ T323] ? __cfi_task_work_run+0x10/0x10 [ 25.748875][ T323] ? __cfi___close_range+0x10/0x10 [ 25.754007][ T323] ? do_user_addr_fault+0x9a5/0x1030 [ 25.759320][ T323] exit_to_user_mode_loop+0x9b/0xb0 [ 25.764570][ T323] exit_to_user_mode_prepare+0x87/0xd0 [ 25.770057][ T323] syscall_exit_to_user_mode+0x1a/0x30 [ 25.775540][ T323] do_syscall_64+0x58/0xa0 [ 25.779981][ T323] ? clear_bhb_loop+0x30/0x80 [ 25.784678][ T323] ? clear_bhb_loop+0x30/0x80 [ 25.789389][ T323] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.795302][ T323] RIP: 0033:0x7ff20639e159 [ 25.799755][ T323] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 25.819584][ T323] RSP: 002b:00007fff3c54d818 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 25.828046][ T323] RAX: 0000000000000000 RBX: 00007fff3c54d900 RCX: 00007ff20639e159 [ 25.836057][ T323] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 25.844211][ T323] RBP: 00000000000063ba R08: 0000000000000001 R09: 0000000000000000 [ 25.852216][ T323] R10: 0000001b2dc20000 R11: 0000000000000246 R12: 00007fff3c54d940 [ 25.860224][ T323] R13: 00007ff206625fac R14: 0000000000006404 R15: 00007ff206625fa0 [ 25.868241][ T323] [ 25.871532][ T323] [ 25.873912][ T323] Allocated by task 329: [ 25.878174][ T323] kasan_set_track+0x4b/0x70 [ 25.882831][ T323] kasan_save_alloc_info+0x1f/0x30 [ 25.887973][ T323] __kasan_kmalloc+0x95/0xb0 [ 25.892608][ T323] __kmalloc+0xb4/0x1e0 [ 25.896809][ T323] l2tp_session_create+0x38/0xbd0 [ 25.901871][ T323] pppol2tp_connect+0xbf5/0x1640 [ 25.907227][ T323] __sys_connect+0x3da/0x460 [ 25.911858][ T323] __x64_sys_connect+0x7a/0x90 [ 25.916654][ T323] x64_sys_call+0x88d/0x9a0 [ 25.921189][ T323] do_syscall_64+0x4c/0xa0 [ 25.925640][ T323] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.931563][ T323] [ 25.933908][ T323] Freed by task 323: [ 25.937821][ T323] kasan_set_track+0x4b/0x70 [ 25.942442][ T323] kasan_save_free_info+0x2b/0x40 [ 25.947529][ T323] ____kasan_slab_free+0x132/0x180 [ 25.952705][ T323] __kasan_slab_free+0x11/0x20 [ 25.957544][ T323] slab_free_freelist_hook+0xc2/0x190 [ 25.963268][ T323] __kmem_cache_free+0xb7/0x1b0 [ 25.968152][ T323] kfree+0x6f/0xf0 [ 25.971904][ T323] l2tp_session_put+0xaf/0x1a0 [ 25.976701][ T323] l2tp_session_delete+0x3df/0x4d0 [ 25.981856][ T323] pppol2tp_release+0x169/0x2b0 [ 25.986748][ T323] sock_close+0xc9/0x220 [ 25.991033][ T323] __fput+0x1fd/0x8f0 [ 25.995063][ T323] ____fput+0x15/0x20 [ 25.999089][ T323] task_work_run+0x1e1/0x250 [ 26.003717][ T323] exit_to_user_mode_loop+0x9b/0xb0 [ 26.008962][ T323] exit_to_user_mode_prepare+0x87/0xd0 [ 26.014458][ T323] syscall_exit_to_user_mode+0x1a/0x30 [ 26.019956][ T323] do_syscall_64+0x58/0xa0 [ 26.024452][ T323] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 26.030382][ T323] [ 26.032731][ T323] The buggy address belongs to the object at ffff888133021800 [ 26.032731][ T323] which belongs to the cache kmalloc-512 of size 512 [ 26.046816][ T323] The buggy address is located 336 bytes inside of [ 26.046816][ T323] 512-byte region [ffff888133021800, ffff888133021a00) [ 26.060138][ T323] [ 26.062502][ T323] The buggy address belongs to the physical page: [ 26.068937][ T323] page:ffffea0004cc0800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x133020 [ 26.077347][ T330] CPU: 1 PID: 330 Comm: syz.4.6 Not tainted syzkaller #0 [ 26.079223][ T323] head:ffffea0004cc0800 order:2 compound_mapcount:0 compound_pincount:0 [ 26.086273][ T330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 26.094599][ T323] flags: 0x4000000000010200(slab|head|zone=1) [ 26.104667][ T330] Call Trace: [ 26.104676][ T330] [ 26.110745][ T323] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 26.114025][ T330] __dump_stack+0x21/0x24 [ 26.116974][ T323] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 26.125553][ T330] dump_stack_lvl+0x110/0x170 [ 26.129890][ T323] page dumped because: kasan: bad access detected [ 26.129901][ T323] page_owner tracks the page as allocated [ 26.138481][ T330] ? __cfi_dump_stack_lvl+0x8/0x8 [ 26.143185][ T323] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 6, tgid 6 (kworker/0:0), ts 25576690663, free_ts 25567998226 [ 26.149578][ T330] dump_stack+0x15/0x24 [ 26.155297][ T323] post_alloc_hook+0x1f5/0x210 [ 26.160326][ T330] should_fail_ex+0x3bf/0x510 [ 26.181846][ T323] prep_new_page+0x1c/0x110 [ 26.186024][ T330] ? flock_lock_inode+0x211/0x1380 [ 26.190797][ T323] get_page_from_freelist+0x2ca9/0x2d20 [ 26.195490][ T330] __should_failslab+0xac/0xf0 [ 26.199993][ T323] __alloc_pages+0x1fa/0x610 [ 26.205124][ T330] should_failslab+0x9/0x20 [ 26.210692][ T323] alloc_slab_page+0x6e/0xf0 [ 26.215462][ T330] kmem_cache_alloc+0x3b/0x320 [ 26.220052][ T323] new_slab+0x98/0x3e0 [ 26.224564][ T330] ? locks_get_lock_context+0x57/0x2d0 [ 26.229158][ T323] ___slab_alloc+0x70f/0xb70 [ 26.233927][ T330] flock_lock_inode+0x211/0x1380 [ 26.238018][ T323] __slab_alloc+0x5e/0xa0 [ 26.243479][ T330] ? avc_has_perm+0x163/0x250 [ 26.248071][ T323] __kmem_cache_alloc_node+0x204/0x2d0 [ 26.253021][ T330] ? __cfi_avc_has_perm+0x10/0x10 [ 26.257448][ T323] __kmalloc_node_track_caller+0xa1/0x1e0 [ 26.262136][ T330] ? check_conflicting_open+0x260/0x260 [ 26.267710][ T323] __alloc_skb+0x226/0x4a0 [ 26.272769][ T330] ? __cfi_futex_wait+0x10/0x10 [ 26.278490][ T323] __ipv6_ifa_notify+0x200/0xe80 [ 26.284037][ T330] locks_lock_inode_wait+0xfd/0x430 [ 26.288466][ T323] addrconf_dad_completed+0x192/0xe80 [ 26.293320][ T330] ? __cfi_locks_lock_inode_wait+0x10/0x10 [ 26.298255][ T323] addrconf_dad_work+0xc1b/0x14a0 [ 26.303458][ T330] ? security_file_lock+0x8a/0xb0 [ 26.308823][ T323] process_one_work+0x717/0xc30 [ 26.314629][ T330] __se_sys_flock+0x48f/0x5b0 [ 26.319649][ T323] worker_thread+0xa4d/0x11d0 [ 26.324765][ T330] ? __x64_sys_flock+0x70/0x70 [ 26.329614][ T323] page last free stack trace: [ 26.329622][ T323] free_unref_page_prepare+0x81b/0x820 [ 26.334287][ T330] ? mutex_unlock+0x8f/0x230 [ 26.338974][ T323] free_unref_page+0x93/0x530 [ 26.343772][ T330] ? fpregs_restore_userregs+0x128/0x260 [ 26.348426][ T323] __free_pages+0x67/0x100 [ 26.353909][ T330] __x64_sys_flock+0x5b/0x70 [ 26.358505][ T323] free_pages+0x82/0x90 [ 26.363196][ T330] x64_sys_call+0x10f/0x9a0 [ 26.368829][ T323] __stack_depot_save+0x45f/0x490 [ 26.373245][ T330] do_syscall_64+0x4c/0xa0 [ 26.377840][ T323] kasan_set_track+0x60/0x70 [ 26.381995][ T330] ? clear_bhb_loop+0x30/0x80 [ 26.386504][ T323] kasan_save_alloc_info+0x1f/0x30 [ 26.391534][ T330] ? clear_bhb_loop+0x30/0x80 [ 26.395956][ T323] __kasan_slab_alloc+0x72/0x80 [ 26.400666][ T330] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 26.405336][ T323] slab_post_alloc_hook+0x4f/0x2d0 [ 26.410444][ T330] RIP: 0033:0x7fbee1f9e159 [ 26.415143][ T323] kmem_cache_alloc_lru+0x104/0x280 [ 26.419994][ T330] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 26.425883][ T323] shmem_alloc_inode+0x28/0x40 [ 26.430997][ T330] RSP: 002b:00007fbee2f30028 EFLAGS: 00000246 [ 26.435421][ T323] new_inode_pseudo+0x70/0x1f0 [ 26.440622][ T330] ORIG_RAX: 0000000000000049 [ 26.440638][ T330] RAX: ffffffffffffffda RBX: 00007fbee2225fa0 RCX: 00007fbee1f9e159 [ 26.460249][ T323] new_inode+0x28/0x1e0 [ 26.465019][ T330] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000003 [ 26.471091][ T323] shmem_get_inode+0x36d/0xba0 [ 26.475870][ T330] RBP: 00007fbee203506b R08: 0000000000000000 R09: 0000000000000000 [ 26.480568][ T323] __shmem_file_setup+0x113/0x2b0 [ 26.488561][ T330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 26.492726][ T323] shmem_zero_setup+0x8c/0x130 [ 26.500750][ T330] R13: 00007fbee2226038 R14: 00007fbee2225fa0 R15: 00007ffc6d520e08 [ 26.505518][ T323] [ 26.505524][ T323] Memory state around the buggy address: [ 26.513736][ T330] [ 26.518771][ T323] ffff888133021800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.558601][ T323] ffff888133021880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.566691][ T323] >ffff888133021900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.574771][ T323] ^ [ 26.581471][ T323] ffff888133021980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.589557][ T323] ffff888133021a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.597640][ T323] ================================================================== [ 26.716144][ T333] loop1: detected capacity change from 0 to 256 [ 26.781009][ T28] kauditd_printk_skb: 39 callbacks suppressed [ 26.781063][ T28] audit: type=1400 audit(1790296322.186:113): avc: denied { name_bind } for pid=326 comm="syz.1.7" src=20001 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unreserved_port_t tclass=tcp_socket permissive=1 [ 26.808910][ T323] Disabling lock debugging due to kernel taint [ 26.828990][ T288] EXT4-fs (loop3): unmounting filesystem. [ 27.321771][ T337] loop0: detected capacity change from 0 to 4096 [ 30.354391][ T337] EXT4-fs: Quota format mount options ignored when QUOTA feature is enabled [ 30.363778][ T337] EXT4-fs (loop0): Test dummy encryption mode enabled [ 30.403183][ T337] [EXT4 FS bs=4096, gc=1, bpg=524288, ipg=32, mo=284ec118, mo2=0003] [ 30.412683][ T337] System zones: 0-5 [ 30.462660][ T337] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 30.663636][ T28] audit: type=1400 audit(1790296322.286:114): avc: denied { mount } for pid=326 comm="syz.1.7" name="/" dev="loop1" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1 [ 30.731601][ T289] EXT4-fs (loop0): unmounting filesystem. [ 30.754072][ T28] audit: type=1400 audit(1790296325.746:115): avc: denied { unmount } for pid=287 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1 [ 30.779376][ T28] audit: type=1400 audit(1790296325.906:116): avc: denied { read } for pid=85 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 30.808428][ T28] audit: type=1400 audit(1790296325.906:117): avc: denied { search } for pid=85 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 30.836001][ T28] audit: type=1400 audit(1790296325.906:118): avc: denied { write } for pid=85 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 30.862323][ T28] audit: type=1400 audit(1790296325.906:119): avc: denied { add_name } for pid=85 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 30.884639][ T28] audit: type=1400 audit(1790296325.916:120): avc: denied { create } for pid=85 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 30.905589][ T28] audit: type=1400 audit(1790296325.916:121): avc: denied { append open } for pid=85 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 30.929848][ T28] audit: type=1400 audit(1790296325.916:122): avc: denied { getattr } for pid=85 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1