syzkaller syzkaller login: [ 15.552523][ T24] kauditd_printk_skb: 5 callbacks suppressed [ 15.552554][ T24] audit: type=1400 audit(1785104976.480:59): avc: denied { transition } for pid=217 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 15.563597][ T24] audit: type=1400 audit(1785104976.480:60): avc: denied { noatsecure } for pid=217 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 15.571668][ T24] audit: type=1400 audit(1785104976.480:61): avc: denied { write } for pid=217 comm="sh" path="pipe:[1379]" dev="pipefs" ino=1379 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 15.592366][ T24] audit: type=1400 audit(1785104976.480:62): avc: denied { rlimitinh } for pid=217 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 15.611148][ T24] audit: type=1400 audit(1785104976.480:63): avc: denied { siginh } for pid=217 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.7' (ED25519) to the list of known hosts. 2026/07/26 22:29:45 parsed 1 programs 2026/07/26 22:29:45 serving rpc on tcp://39703 [ 24.859330][ T24] audit: type=1400 audit(1785104985.790:64): avc: denied { node_bind } for pid=287 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 24.880260][ T24] audit: type=1400 audit(1785104985.790:65): avc: denied { create } for pid=287 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 24.899873][ T24] audit: type=1400 audit(1785104985.790:66): avc: denied { module_request } for pid=287 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 25.796909][ T24] audit: type=1400 audit(1785104986.730:67): avc: denied { mounton } for pid=293 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 25.800222][ T293] cgroup: Unknown subsys name 'net' [ 25.819686][ T24] audit: type=1400 audit(1785104986.730:68): avc: denied { mount } for pid=293 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 [ 25.847772][ T24] audit: type=1400 audit(1785104986.760:69): avc: denied { unmount } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 25.848259][ T293] cgroup: Unknown subsys name 'devices' [ 25.958078][ T293] cgroup: Unknown subsys name 'hugetlb' [ 25.963690][ T293] cgroup: Unknown subsys name 'rlimit' [ 26.083913][ T24] audit: type=1400 audit(1785104987.010:70): avc: denied { setattr } for pid=293 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 26.107158][ T24] audit: type=1400 audit(1785104987.010:71): avc: denied { create } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 26.127547][ T24] audit: type=1400 audit(1785104987.010:72): avc: denied { write } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.147461][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.147987][ T24] audit: type=1400 audit(1785104987.010:73): avc: denied { read } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.188276][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 26.666097][ T302] request_module fs-gadgetfs succeeded, but still no fs? [ 26.677045][ T302] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 27.186640][ T343] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.193690][ T343] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.201403][ T343] device bridge_slave_0 entered promiscuous mode [ 27.208411][ T343] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.215452][ T343] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.222924][ T343] device bridge_slave_1 entered promiscuous mode [ 27.262407][ T343] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.269547][ T343] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.276893][ T343] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.283931][ T343] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.302428][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.310097][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.317881][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.328797][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.337075][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.344092][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.351624][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.359789][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.366898][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.379144][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.394436][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.408939][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.424660][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.433070][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.440703][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.449380][ T343] device veth0_vlan entered promiscuous mode [ 27.464009][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.473554][ T343] device veth1_macvtap entered promiscuous mode [ 27.483024][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.498625][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/26 22:29:48 executed programs: 0 [ 27.864567][ T396] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.871792][ T396] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.879231][ T396] device bridge_slave_0 entered promiscuous mode [ 27.886081][ T396] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.893177][ T396] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.900559][ T396] device bridge_slave_1 entered promiscuous mode [ 27.940040][ T396] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.947171][ T396] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.954454][ T396] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.961564][ T396] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.980398][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.988308][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.995692][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.010477][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.019258][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.026320][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.040018][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.048307][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.055338][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.067085][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.079714][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.093351][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.108610][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.116777][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.124149][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.132879][ T396] device veth0_vlan entered promiscuous mode [ 28.143874][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.153014][ T396] device veth1_macvtap entered promiscuous mode [ 28.162565][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.175639][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 28.184148][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.224768][ T9] blk_update_request: I/O error, dev sda, sector 606518 op 0x1:(WRITE) flags 0x4000 phys_seg 24 prio class 0 [ 28.236499][ T9] blk_update_request: I/O error, dev sda, sector 607024 op 0x1:(WRITE) flags 0x4000 phys_seg 16 prio class 0 [ 28.248371][ T9] blk_update_request: I/O error, dev sda, sector 607536 op 0x1:(WRITE) flags 0x4000 phys_seg 17 prio class 0 [ 28.260837][ T9] blk_update_request: I/O error, dev sda, sector 608048 op 0x1:(WRITE) flags 0x4000 phys_seg 16 prio class 0 [ 28.272657][ T9] blk_update_request: I/O error, dev sda, sector 608560 op 0x1:(WRITE) flags 0x4000 phys_seg 13 prio class 0 [ 28.284524][ T9] blk_update_request: I/O error, dev sda, sector 609072 op 0x1:(WRITE) flags 0x4000 phys_seg 14 prio class 0 [ 28.296388][ T9] blk_update_request: I/O error, dev sda, sector 609584 op 0x1:(WRITE) flags 0x4000 phys_seg 14 prio class 0 [ 28.308094][ T9] blk_update_request: I/O error, dev sda, sector 610096 op 0x1:(WRITE) flags 0x4000 phys_seg 9 prio class 0 [ 28.319705][ T9] blk_update_request: I/O error, dev sda, sector 610608 op 0x1:(WRITE) flags 0x4000 phys_seg 8 prio class 0 [ 28.331352][ T9] blk_update_request: I/O error, dev sda, sector 611120 op 0x1:(WRITE) flags 0x4000 phys_seg 9 prio class 0 [ 28.345870][ T9] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 77109) [ 28.366875][ T9] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 77822) [ 28.378464][ T9] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 77862) [ 28.390174][ T7] Buffer I/O error on device sda1, logical block 77784 [ 28.397456][ T7] Buffer I/O error on device sda1, logical block 77785 [ 28.404358][ T7] Buffer I/O error on device sda1, logical block 77786 [ 28.412068][ T7] Buffer I/O error on device sda1, logical block 77787 [ 28.419144][ T7] Buffer I/O error on device sda1, logical block 77788 [ 28.426658][ T7] Buffer I/O error on device sda1, logical block 77789 [ 28.433546][ T7] Buffer I/O error on device sda1, logical block 77790 [ 28.438121][ T9] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 79910) [ 28.441466][ T7] Buffer I/O error on device sda1, logical block 77791 [ 28.459070][ T7] Buffer I/O error on device sda1, logical block 77792 [ 28.465965][ T7] Buffer I/O error on device sda1, logical block 77793 [ 28.483130][ T9] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 81958) [ 28.505581][ T9] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 84006) [ 28.528147][ T9] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 86054) [ 28.546097][ T49] device bridge_slave_1 left promiscuous mode [ 28.551503][ T9] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 88056) [ 28.553299][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.565718][ T9] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2022 starting block 75601) [ 28.583693][ T9] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2023 starting block 65012) [ 28.595503][ T49] device bridge_slave_0 left promiscuous mode [ 28.597956][ T400] Buffer I/O error on dev sda1, logical block 135, lost async page write [ 28.601985][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.610233][ T400] Buffer I/O error on dev sda1, logical block 138, lost async page write [ 28.622153][ T58] Buffer I/O error on dev sda1, logical block 131171, lost sync page write [ 28.625729][ T400] Buffer I/O error on dev sda1, logical block 145, lost async page write [ 28.636159][ T58] Aborting journal on device sda1-8. [ 28.642928][ T400] Buffer I/O error on dev sda1, logical block 150, lost async page write [ 28.648634][ T48] Buffer I/O error on dev sda1, logical block 131072, lost sync page write [ 28.657068][ T400] Buffer I/O error on dev sda1, logical block 157, lost async page write [ 28.665564][ T58] JBD2: Error -5 detected when updating journal superblock for sda1-8. [ 28.673789][ T400] Buffer I/O error on dev sda1, logical block 158, lost async page write [ 28.690543][ T400] Buffer I/O error on dev sda1, logical block 159, lost async page write [ 28.699050][ T400] Buffer I/O error on dev sda1, logical block 226, lost async page write [ 28.708551][ T49] device veth1_macvtap left promiscuous mode [ 28.714587][ T49] device veth0_vlan left promiscuous mode [ 28.731957][ T400] JBD2: Error while async write back metadata bh 135. [ 28.732035][ T400] JBD2: Error while async write back metadata bh 138. [ 28.739908][ T400] JBD2: Error while async write back metadata bh 145. [ 28.747884][ T400] JBD2: Error while async write back metadata bh 150. [ 28.754843][ T400] JBD2: Error while async write back metadata bh 157. [ 28.762490][ T400] JBD2: Error while async write back metadata bh 158. [ 28.769354][ T400] JBD2: Error while async write back metadata bh 159. [ 28.777060][ T400] JBD2: Error while async write back metadata bh 226. [ 28.784138][ T400] JBD2: Error while async write back metadata bh 243. [ 28.791365][ T400] JBD2: Error while async write back metadata bh 261. [ 28.798293][ T400] JBD2: Error while async write back metadata bh 270. [ 28.805251][ T400] JBD2: Error while async write back metadata bh 657. [ 28.812230][ T400] JBD2: Error while async write back metadata bh 4241. [ 28.819135][ T400] JBD2: Error while async write back metadata bh 5747. [ 28.826028][ T400] JBD2: Error while async write back metadata bh 5748. [ 28.833138][ T400] JBD2: Error while async write back metadata bh 5749. [ 28.840073][ T400] JBD2: Error while async write back metadata bh 5750. [ 28.847000][ T400] JBD2: Error while async write back metadata bh 5751. [ 28.855102][ T400] JBD2: Error while async write back metadata bh 33717. [ 28.868697][ T400] sd 0:0:1:0: [sda] Synchronizing SCSI cache [ 28.979111][ T400] EXT4-fs error (device sda1): ext4_journal_check_start:83: Detected aborted journal [ 28.988663][ T400] EXT4-fs (sda1): Remounting filesystem read-only [ 28.995102][ T400] ------------[ cut here ]------------ [ 29.000620][ T400] bdi-(unknown) not registered [ 29.005474][ T400] WARNING: CPU: 0 PID: 400 at fs/fs-writeback.c:2321 __mark_inode_dirty+0x650/0x960 [ 29.014900][ T400] Modules linked in: [ 29.018856][ T400] CPU: 0 PID: 400 Comm: syz.2.17 Not tainted syzkaller #0 [ 29.025952][ T400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 29.036248][ T400] RIP: 0010:__mark_inode_dirty+0x650/0x960 [ 29.042069][ T400] Code: fc ff df 41 80 7c 05 00 00 74 08 4c 89 ff e8 a7 f4 ec ff 49 8b 3f e8 0f af de ff 48 c7 c7 e0 61 29 85 48 89 c6 e8 70 c0 c6 02 <0f> 0b e9 2f fe ff ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 8e fc ff [ 29.061842][ T400] RSP: 0000:ffffc90002f677a0 EFLAGS: 00010246 [ 29.068016][ T400] RAX: a0c6dc2ca7cff600 RBX: 1ffff1102207d046 RCX: ffff88810dc8cf00 [ 29.076000][ T400] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 [ 29.084033][ T400] RBP: ffffc90002f677e8 R08: ffff8881f7052fbf R09: 1ffff1103ee0a5f7 [ 29.092044][ T400] R10: dffffc0000000000 R11: ffffed103ee0a5f8 R12: ffff88810aab2068 [ 29.100052][ T400] R13: 1ffff1102155640c R14: 0000000000000000 R15: ffff88810aab2060 [ 29.108082][ T400] FS: 000055557dffe500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 29.117062][ T400] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.123673][ T400] CR2: 0000001b2d763fdf CR3: 0000000110de2000 CR4: 00000000003506b0 [ 29.131713][ T400] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.139723][ T400] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.147732][ T400] Call Trace: [ 29.151044][ T400] generic_update_time+0x20f/0x230 [ 29.156148][ T400] file_update_time+0x3c0/0x440 [ 29.161038][ T400] ? file_remove_privs+0x590/0x590 [ 29.166167][ T400] ext4_page_mkwrite+0x254/0x12f0 [ 29.171234][ T400] ? ____kasan_slab_free+0x125/0x160 [ 29.176573][ T400] ? kernfs_fop_write_iter+0x3ab/0x400 [ 29.182040][ T400] ? __x64_sys_write+0x7b/0x90 [ 29.186841][ T400] ? do_syscall_64+0x31/0x40 [ 29.191470][ T400] ? ext4_change_inode_journal_flag+0x5e0/0x5e0 [ 29.197862][ T400] wp_page_shared+0x45f/0x740 [ 29.202571][ T400] do_wp_page+0xb68/0xd00 [ 29.206971][ T400] handle_pte_fault+0xbc3/0x3910 [ 29.211922][ T400] handle_mm_fault+0xf86/0x1720 [ 29.216834][ T400] ? fsnotify_set_children_dentry_flags+0x210/0x210 [ 29.223440][ T400] ? can_reuse_spf_vma+0xe0/0xe0 [ 29.228419][ T400] ? vfs_write+0xae4/0xd70 [ 29.232862][ T400] ? __kasan_check_write+0x14/0x20 [ 29.238019][ T400] ? down_read_trylock+0x106/0x160 [ 29.243147][ T400] ? __init_rwsem+0x1c0/0x1c0 [ 29.247869][ T400] ? find_vma+0x30/0x150 [ 29.252123][ T400] do_user_addr_fault+0x576/0xe20 [ 29.257186][ T400] ? do_kern_addr_fault+0x80/0x80 [ 29.262224][ T400] ? debug_smp_processor_id+0x17/0x20 [ 29.267645][ T400] ? fpregs_assert_state_consistent+0xb1/0xe0 [ 29.273727][ T400] exc_page_fault+0x5a/0xc0 [ 29.278289][ T400] ? asm_exc_page_fault+0x8/0x30 [ 29.283232][ T400] asm_exc_page_fault+0x1e/0x30 [ 29.288158][ T400] RIP: 0033:0x7f680e938711 [ 29.292608][ T400] Code: 00 48 89 ef e8 60 52 ff ff 48 8b 05 69 f0 ee 00 83 05 52 f0 ee 00 01 be 08 00 00 00 48 89 ef 48 8d 50 ff 48 89 15 4f f0 ee 00 <44> 88 78 ff 44 8b 3d 34 f0 ee 00 e8 2f 52 ff ff 48 8b 05 40 f0 ee [ 29.312421][ T400] RSP: 002b:00007ffd4d6a00b0 EFLAGS: 00010206 [ 29.318589][ T400] RAX: 0000001b2d763fe0 RBX: 0000000000000000 RCX: 0000000000000000 [ 29.326727][ T400] RDX: 0000001b2d763fdf RSI: 0000000000000008 RDI: 00007f680f827720 [ 29.334746][ T400] RBP: 00007f680f827720 R08: 0000000000000000 R09: 00007f680ecf8038 [ 29.342814][ T400] R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 [ 29.350823][ T400] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 [ 29.359675][ T400] ---[ end trace 121c793bf8e9403d ]--- [ 29.367168][ T293] ------------[ cut here ]------------ [ 29.372761][ T293] bdi-(unknown) not registered [ 29.377901][ T293] WARNING: CPU: 1 PID: 293 at fs/fs-writeback.c:2321 __mark_inode_dirty+0x650/0x960 [ 29.387611][ T293] Modules linked in: [ 29.391517][ T293] CPU: 1 PID: 293 Comm: syz-executor Tainted: G W syzkaller #0 [ 29.401324][ T293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 29.411670][ T293] RIP: 0010:__mark_inode_dirty+0x650/0x960 [ 29.417825][ T293] Code: fc ff df 41 80 7c 05 00 00 74 08 4c 89 ff e8 a7 f4 ec ff 49 8b 3f e8 0f af de ff 48 c7 c7 e0 61 29 85 48 89 c6 e8 70 c0 c6 02 <0f> 0b e9 2f fe ff ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 8e fc ff [ 29.438254][ T293] RSP: 0000:ffffc90000bc77d8 EFLAGS: 00010246 [ 29.444351][ T293] RAX: 7757ce88d075e900 RBX: 1ffff1102207d922 RCX: ffff888104fe3b40 [ 29.452525][ T293] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 29.460579][ T293] RBP: ffffc90000bc7820 R08: ffffc90000bc7167 R09: fffff52000178e60 [ 29.468598][ T293] R10: dffffc0000000000 R11: fffff52000178e2d R12: ffff88810aab2068 [ 29.476627][ T293] R13: 1ffff1102155640c R14: 0000000000000000 R15: ffff88810aab2060 [ 29.484604][ T293] FS: 00005555570d2500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 29.493587][ T293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.500239][ T293] CR2: 00007f342bd2c000 CR3: 0000000101b89000 CR4: 00000000003506a0 [ 29.508269][ T293] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.516282][ T293] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.524251][ T293] Call Trace: [ 29.527611][ T293] mark_buffer_dirty+0x21b/0x330 [ 29.532560][ T293] __block_commit_write+0x1ab/0x240 [ 29.537795][ T293] block_page_mkwrite+0x239/0x270 [ 29.542836][ T293] ? ext4_da_release_space+0x420/0x420 [ 29.548354][ T293] ext4_page_mkwrite+0xb02/0x12f0 [ 29.553419][ T293] ? ext4_change_inode_journal_flag+0x5e0/0x5e0 [ 29.559856][ T293] wp_page_shared+0x45f/0x740 [ 29.564545][ T293] do_wp_page+0xb68/0xd00 [ 29.568937][ T293] handle_pte_fault+0xbc3/0x3910 [ 29.573890][ T293] handle_mm_fault+0xf86/0x1720 [ 29.578788][ T293] ? fsnotify_clear_child_dentry_flag+0xe0/0xe0 [ 29.585062][ T293] ? can_reuse_spf_vma+0xe0/0xe0 [ 29.590107][ T293] ? vfs_write+0xaeb/0xd70 [ 29.594549][ T293] ? __kasan_check_write+0x14/0x20 [ 29.599707][ T293] ? down_read_trylock+0x106/0x160 [ 29.604858][ T293] ? __init_rwsem+0x1c0/0x1c0 [ 29.609607][ T293] ? vmacache_update+0xb7/0x120 [ 29.614475][ T293] ? find_vma+0x13b/0x150 [ 29.618971][ T293] do_user_addr_fault+0x576/0xe20 [ 29.624007][ T293] ? do_kern_addr_fault+0x80/0x80 [ 29.629087][ T293] ? debug_smp_processor_id+0x17/0x20 [ 29.634482][ T293] ? fpregs_assert_state_consistent+0xb1/0xe0 [ 29.640605][ T293] exc_page_fault+0x5a/0xc0 [ 29.645564][ T293] ? asm_exc_page_fault+0x8/0x30 [ 29.650551][ T293] asm_exc_page_fault+0x1e/0x30 [ 29.655409][ T293] RIP: 0033:0x7f342c298dd6 [ 29.659867][ T293] Code: 81 fa 80 00 00 00 76 ad c5 fe 6f 56 40 c5 fe 6f 5e 60 c5 fe 6f 64 16 e0 c5 fe 6f 6c 16 c0 c5 fe 6f 74 16 a0 c5 fe 6f 7c 16 80 fe 7f 07 c5 fe 7f 4f 20 c5 fe 7f 57 40 c5 fe 7f 5f 60 c5 fe 7f [ 29.679577][ T293] RSP: 002b:00007ffc8cf6ee88 EFLAGS: 00010202 [ 29.685642][ T293] RAX: 00007f342bd2c000 RBX: 00005555570e7110 RCX: fffffffffffffbf0 [ 29.693655][ T293] RDX: 00000000000000db RSI: 00005555570ea160 RDI: 00007f342bd2c000 [ 29.701685][ T293] RBP: 00007ffc8cf6eea0 R08: 00007f342c51ce20 R09: 0000000000000000 [ 29.709705][ T293] R10: 0000000000000000 R11: 0000000000000202 R12: 00005555570e9e50 [ 29.717741][ T293] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 29.725732][ T293] ---[ end trace 121c793bf8e9403e ]--- [ 29.733108][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 29.744701][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 29.756433][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 29.768024][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 29.779468][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1642: comm udevd: reading directory lblock 0 [ 29.791213][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1480: comm udevd: reading directory lblock 0 2026/07/26 22:29:53 executed programs: 186 [ 32.811067][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 32.822584][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 32.834111][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 32.845572][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 35.861010][ T95] EXT4-fs error: 2 callbacks suppressed [ 35.861026][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 35.878107][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 35.889712][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 35.901198][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 35.912886][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1642: comm udevd: reading directory lblock 0 [ 35.924651][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1480: comm udevd: reading directory lblock 0 2026/07/26 22:29:58 executed programs: 486 [ 38.971074][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 38.982623][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 38.994258][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 39.005739][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 39.447218][ T179] EXT4-fs warning: 5 callbacks suppressed [ 39.447231][ T179] EXT4-fs warning (device sda1): htree_dirblock_to_tree:1063: inode #121: lblock 0: comm crond: error -5 reading directory block SYZFAIL: posix_spawnp failed (errno 5: Input/output error) connection error: failed to recv *flatrpc.ExecutorMessageRawT: read tcp 127.0.0.1:39703->127.0.0.1:50484: read: connection reset by peer [ 40.406969][ T7] device bridge_slave_1 left promiscuous mode [ 40.413112][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.420658][ T7] device bridge_slave_0 left promiscuous mode [ 40.426874][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.434715][ T7] device veth1_macvtap left promiscuous mode [ 40.440835][ T7] device veth0_vlan left promiscuous mode [ 42.748043][ T95] EXT4-fs error: 11 callbacks suppressed [ 42.748059][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 42.765493][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 42.776973][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 42.788365][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 42.799862][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1642: comm udevd: reading directory lblock 0 [ 42.811419][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1480: comm udevd: reading directory lblock 0