last executing test programs: kernel console output (not intermixed with test programs): Warning: Permanently added '[localhost]:26755' (ED25519) to the list of known hosts. [ 45.977109][ T40] audit: type=1400 audit(1777532071.681:62): avc: denied { name_bind } for pid=5638 comm="sshd-session" src=30000 scontext=system_u:system_r:sshd_t tcontext=system_u:object_r:unreserved_port_t tclass=tcp_socket permissive=1 [ 46.008372][ T40] audit: type=1400 audit(1777532071.711:63): avc: denied { execute } for pid=5639 comm="sh" name="syz-executor" dev="sda1" ino=2020 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 46.015479][ T40] audit: type=1400 audit(1777532071.711:64): avc: denied { execute_no_trans } for pid=5639 comm="sh" path="/syz-executor" dev="sda1" ino=2020 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 48.198573][ T40] audit: type=1400 audit(1777532073.901:65): avc: denied { mounton } for pid=5639 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2022 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 48.206988][ T40] audit: type=1400 audit(1777532073.911:66): avc: denied { mount } for pid=5639 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 [ 48.208941][ T5639] cgroup: Unknown subsys name 'net' [ 48.350854][ T5639] cgroup: Unknown subsys name 'cpuset' [ 48.357849][ T5639] cgroup: Unknown subsys name 'rlimit' [ 48.464032][ T5684] [ 48.465077][ T5684] ===================================== [ 48.467275][ T5684] WARNING: bad unlock balance detected! [ 48.469463][ T5684] syzkaller #0 Not tainted [ 48.471213][ T5684] ------------------------------------- [ 48.473381][ T5684] dhcpcd-run-hook/5684 is trying to release lock (rcu_read_lock) at: [ 48.476540][ T5684] [] rcu_read_unlock+0x2d/0xb0 [ 48.479025][ T5684] but there are no more locks to release! [ 48.481249][ T5684] [ 48.481249][ T5684] other info that might help us debug this: [ 48.484328][ T5684] 1 lock held by dhcpcd-run-hook/5684: [ 48.486459][ T5684] #0: ffff88803efc9c08 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x11d/0x590 [ 48.490022][ T5684] [ 48.490022][ T5684] stack backtrace: [ 48.492336][ T5684] CPU: 0 UID: 0 PID: 5684 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full) [ 48.492355][ T5684] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 48.492364][ T5684] Call Trace: [ 48.492370][ T5684] [ 48.492377][ T5684] dump_stack_lvl+0x100/0x190 [ 48.492393][ T5684] ? rcu_read_unlock+0x2d/0xb0 [ 48.492415][ T5684] print_unlock_imbalance_bug.part.0+0xfb/0x106 [ 48.492440][ T5684] ? rcu_read_unlock+0x2d/0xb0 [ 48.492460][ T5684] lock_release+0x28d/0x310 [ 48.492480][ T5684] rcu_read_unlock+0x32/0xb0 [ 48.492497][ T5684] do_wp_page+0x13d7/0x4350 [ 48.492517][ T5684] ? __pfx_do_wp_page+0x10/0x10 [ 48.492535][ T5684] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 48.492559][ T5684] __handle_mm_fault+0x1ab6/0x2a00 [ 48.492581][ T5684] ? reacquire_held_locks+0xce/0x1e0 [ 48.492595][ T5684] ? __pfx___handle_mm_fault+0x10/0x10 [ 48.492617][ T5684] ? lock_vma_under_rcu+0x17c/0x590 [ 48.492641][ T5684] handle_mm_fault+0x36d/0xa20 [ 48.492663][ T5684] do_user_addr_fault+0x5a3/0x12f0 [ 48.492687][ T5684] exc_page_fault+0x6f/0xd0 [ 48.492701][ T5684] asm_exc_page_fault+0x26/0x30 [ 48.492716][ T5684] RIP: 0033:0x7ff0616e6fd6 [ 48.492729][ T5684] Code: 1d 87 e2 13 00 48 39 5f 08 0f 84 fe 00 00 00 42 0f b7 34 72 48 3b 35 31 72 13 00 48 89 f0 0f 83 80 00 00 00 48 89 f9 83 c0 01 <48> 89 5f 08 48 c1 e9 0c 4a 33 8c f2 80 00 00 00 48 89 0f 4a 89 bc [ 48.492744][ T5684] RSP: 002b:00007ffc9694b700 EFLAGS: 00010202 [ 48.492820][ T5684] RAX: 0000000000000001 RBX: e63746a2db16e121 RCX: 0000558eba013a80 [ 48.492829][ T5684] RDX: 0000558eba00c010 RSI: 0000000000000000 RDI: 0000558eba013a80 [ 48.492856][ T5684] RBP: 0000558eba013a70 R08: 0000000000000410 R09: 0000000000000000 [ 48.492866][ T5684] R10: 0000000000000000 R11: 0000000000000202 R12: ffffffffffffff88 [ 48.492875][ T5684] R13: 0000000000000002 R14: 000000000000003f R15: 00007ff06181eac0 [ 48.492889][ T5684] [ 48.564375][ T5684] ------------[ cut here ]------------ [ 48.566637][ T5684] rrln < 0 || rrln > RCU_NEST_PMAX [ 48.566646][ T5684] WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x235/0x5e0, CPU#0: dhcpcd-run-hook/5684 [ 48.573041][ T5684] Modules linked in: [ 48.574711][ T5684] CPU: 0 UID: 0 PID: 5684 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full) [ 48.578702][ T5684] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 48.582662][ T5684] RIP: 0010:__rcu_read_unlock+0x235/0x5e0 [ 48.585223][ T5684] Code: 74 11 c7 45 58 01 00 00 00 bf 09 00 00 00 e8 c2 6f da ff e8 1d fc 22 00 9c 58 f6 c4 02 0f 85 dd 02 00 00 fb e9 57 fe ff ff 90 <0f> 0b 90 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 94 72 88 [ 48.592715][ T5684] RSP: 0000:ffffc90003887af0 EFLAGS: 00010286 [ 48.595319][ T5684] RAX: 00000000ffffffff RBX: ffff88802540ca00 RCX: ffffffff81e7b7ae [ 48.598384][ T5684] RDX: 0000000000000000 RSI: ffffffff8def9308 RDI: ffff88802540cec4 [ 48.601566][ T5684] RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 [ 48.604662][ T5684] R10: 0000000080000000 R11: 0000000000000012 R12: ffff88802df9a098 [ 48.608093][ T5684] R13: ffffea0000f2ff00 R14: 0000000000000000 R15: ffffea0000f2ff00 [ 48.611166][ T5684] FS: 00007ff061584c80(0000) GS:ffff8880d6379000(0000) knlGS:0000000000000000 [ 48.614650][ T5684] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.617487][ T5684] CR2: 0000558eba013a88 CR3: 000000002dfa5000 CR4: 0000000000352ef0 [ 48.620567][ T5684] Call Trace: [ 48.621990][ T5684] [ 48.624042][ T5684] do_wp_page+0x13d7/0x4350 [ 48.625586][ T5685] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 48.628697][ T5684] ? __pfx_do_wp_page+0x10/0x10 [ 48.632692][ T5684] ? __pfx_do_raw_spin_lock+0x10/0x10 Setting up swapspace version 1, size = 127995904 bytes [ 48.637183][ T5684] __handle_mm_fault+0x1ab6/0x2a00 [ 48.641138][ T5684] ? reacquire_held_locks+0xce/0x1e0 [ 48.643784][ T5684] ? __pfx___handle_mm_fault+0x10/0x10 [ 48.647673][ T5684] ? lock_vma_under_rcu+0x17c/0x590 [ 48.653911][ T5684] handle_mm_fault+0x36d/0xa20 [ 48.657933][ T5684] do_user_addr_fault+0x5a3/0x12f0 [ 48.662189][ T5684] exc_page_fault+0x6f/0xd0 [ 48.664795][ T5684] asm_exc_page_fault+0x26/0x30 [ 48.667087][ T5684] RIP: 0033:0x7ff0616e6fd6 [ 48.669001][ T5684] Code: 1d 87 e2 13 00 48 39 5f 08 0f 84 fe 00 00 00 42 0f b7 34 72 48 3b 35 31 72 13 00 48 89 f0 0f 83 80 00 00 00 48 89 f9 83 c0 01 <48> 89 5f 08 48 c1 e9 0c 4a 33 8c f2 80 00 00 00 48 89 0f 4a 89 bc [ 48.676584][ T5684] RSP: 002b:00007ffc9694b700 EFLAGS: 00010202 [ 48.678967][ T5684] RAX: 0000000000000001 RBX: e63746a2db16e121 RCX: 0000558eba013a80 [ 48.682047][ T5684] RDX: 0000558eba00c010 RSI: 0000000000000000 RDI: 0000558eba013a80 [ 48.685276][ T5684] RBP: 0000558eba013a70 R08: 0000000000000410 R09: 0000000000000000 [ 48.688332][ T5684] R10: 0000000000000000 R11: 0000000000000202 R12: ffffffffffffff88 [ 48.691385][ T5684] R13: 0000000000000002 R14: 000000000000003f R15: 00007ff06181eac0 [ 48.698088][ T5684] [ 48.699336][ T5684] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 48.702159][ T5684] CPU: 0 UID: 0 PID: 5684 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full) [ 48.705924][ T5684] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 48.709870][ T5684] Call Trace: [ 48.711345][ T5684] [ 48.712679][ T5684] dump_stack_lvl+0x100/0x190 [ 48.715628][ T5684] vpanic+0x552/0x970 [ 48.717710][ T5684] ? __pfx_vpanic+0x10/0x10 [ 48.722127][ T5684] panic+0xd1/0xe0 [ 48.724178][ T5684] ? __pfx_panic+0x10/0x10 [ 48.728763][ T5684] ? check_panic_on_warn+0x1f/0x90 [ 48.731773][ T5684] check_panic_on_warn.cold+0x19/0x34 [ 48.734445][ T5684] ? __rcu_read_unlock+0x235/0x5e0 [ 48.736583][ T5684] __warn.cold+0x191/0x328 [ 48.739728][ T5684] __report_bug+0x296/0x3d0 [ 48.741754][ T5684] ? __rcu_read_unlock+0x235/0x5e0 [ 48.744690][ T5684] ? __pfx___report_bug+0x10/0x10 [ 48.746852][ T5684] ? is_bpf_text_address+0x8a/0x1a0 [ 48.749074][ T5684] ? lock_release+0x245/0x310 [ 48.751093][ T5684] ? bpf_ksym_find+0x128/0x1c0 [ 48.754471][ T5684] ? is_bpf_text_address+0x6f/0x1a0 [ 48.758550][ T5684] ? __rcu_read_unlock+0x235/0x5e0 [ 48.761227][ T5684] report_bug+0xb2/0x220 [ 48.763475][ T5684] ? __rcu_read_unlock+0x235/0x5e0 [ 48.766019][ T5684] handle_bug+0x16a/0x2a0 [ 48.768314][ T5684] exc_invalid_op+0x17/0x50 [ 48.770517][ T5684] asm_exc_invalid_op+0x1a/0x20 [ 48.772599][ T5684] RIP: 0010:__rcu_read_unlock+0x235/0x5e0 [ 48.774953][ T5684] Code: 74 11 c7 45 58 01 00 00 00 bf 09 00 00 00 e8 c2 6f da ff e8 1d fc 22 00 9c 58 f6 c4 02 0f 85 dd 02 00 00 fb e9 57 fe ff ff 90 <0f> 0b 90 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 94 72 88 [ 48.782487][ T5684] RSP: 0000:ffffc90003887af0 EFLAGS: 00010286 [ 48.784899][ T5684] RAX: 00000000ffffffff RBX: ffff88802540ca00 RCX: ffffffff81e7b7ae [ 48.788024][ T5684] RDX: 0000000000000000 RSI: ffffffff8def9308 RDI: ffff88802540cec4 [ 48.791132][ T5684] RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 [ 48.794259][ T5684] R10: 0000000080000000 R11: 0000000000000012 R12: ffff88802df9a098 [ 48.797404][ T5684] R13: ffffea0000f2ff00 R14: 0000000000000000 R15: ffffea0000f2ff00 [ 48.801769][ T5684] ? nbcon_cpu_emergency_exit+0x11e/0x1e0 [ 48.805744][ T5684] do_wp_page+0x13d7/0x4350 [ 48.809620][ T5684] ? __pfx_do_wp_page+0x10/0x10 [ 48.812529][ T5684] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 48.816335][ T5684] __handle_mm_fault+0x1ab6/0x2a00 [ 48.819874][ T5684] ? reacquire_held_locks+0xce/0x1e0 [ 48.822409][ T5684] ? __pfx___handle_mm_fault+0x10/0x10 [ 48.825824][ T5684] ? lock_vma_under_rcu+0x17c/0x590 [ 48.831112][ T5684] handle_mm_fault+0x36d/0xa20 [ 48.834544][ T5684] do_user_addr_fault+0x5a3/0x12f0 [ 48.838294][ T5684] exc_page_fault+0x6f/0xd0 [ 48.840706][ T5684] asm_exc_page_fault+0x26/0x30 [ 48.842820][ T5684] RIP: 0033:0x7ff0616e6fd6 [ 48.844674][ T5684] Code: 1d 87 e2 13 00 48 39 5f 08 0f 84 fe 00 00 00 42 0f b7 34 72 48 3b 35 31 72 13 00 48 89 f0 0f 83 80 00 00 00 48 89 f9 83 c0 01 <48> 89 5f 08 48 c1 e9 0c 4a 33 8c f2 80 00 00 00 48 89 0f 4a 89 bc [ 48.852218][ T5684] RSP: 002b:00007ffc9694b700 EFLAGS: 00010202 [ 48.854647][ T5684] RAX: 0000000000000001 RBX: e63746a2db16e121 RCX: 0000558eba013a80 [ 48.857789][ T5684] RDX: 0000558eba00c010 RSI: 0000000000000000 RDI: 0000558eba013a80 [ 48.860902][ T5684] RBP: 0000558eba013a70 R08: 0000000000000410 R09: 0000000000000000 [ 48.864033][ T5684] R10: 0000000000000000 R11: 0000000000000202 R12: ffffffffffffff88 [ 48.867186][ T5684] R13: 0000000000000002 R14: 000000000000003f R15: 00007ff06181eac0 [ 48.872886][ T5684] [ 48.874719][ T5684] Kernel Offset: disabled [ 48.876551][ T5684] Rebooting in 86400 seconds..