Warning: Permanently added '10.128.0.204' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 21.702378][ T24] audit: type=1400 audit(1743571271.560:66): avc: denied { execmem } for pid=281 comm="syz-executor691" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.712930][ T24] audit: type=1400 audit(1743571271.560:67): avc: denied { read write } for pid=283 comm="syz-executor691" name="loop1" dev="devtmpfs" ino=112 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 21.722463][ T24] audit: type=1400 audit(1743571271.560:68): avc: denied { open } for pid=283 comm="syz-executor691" path="/dev/loop1" dev="devtmpfs" ino=112 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 21.777609][ T24] audit: type=1400 audit(1743571271.560:69): avc: denied { ioctl } for pid=283 comm="syz-executor691" path="/dev/loop1" dev="devtmpfs" ino=112 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 22.258322][ T24] audit: type=1400 audit(1743571272.120:70): avc: denied { mounton } for pid=294 comm="syz-executor691" path="/root/file0" dev="sda1" ino=1926 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 22.319947][ T298] F2FS-fs (loop3): Ignore s_resuid=60929, s_resgid=0 w/o reserve_root [ 22.323610][ T296] F2FS-fs (loop4): Ignore s_resuid=60929, s_resgid=0 w/o reserve_root [ 22.329843][ T298] F2FS-fs (loop3): Found nat_bits in checkpoint [ 22.339491][ T289] F2FS-fs (loop0): Ignore s_resuid=60929, s_resgid=0 w/o reserve_root [ 22.343570][ T296] F2FS-fs (loop4): Found nat_bits in checkpoint [ 22.360168][ T295] F2FS-fs (loop1): Ignore s_resuid=60929, s_resgid=0 w/o reserve_root [ 22.378824][ T295] F2FS-fs (loop1): Found nat_bits in checkpoint [ 22.387458][ T289] F2FS-fs (loop0): Found nat_bits in checkpoint [ 22.397649][ T296] F2FS-fs (loop4): Cannot turn on quotas: -2 on 0 [ 22.403961][ T296] F2FS-fs (loop4): Cannot turn on quotas: -2 on 1 [ 22.411692][ T297] F2FS-fs (loop2): Ignore s_resuid=60929, s_resgid=0 w/o reserve_root [ 22.419793][ T296] F2FS-fs (loop4): Cannot turn on quotas: -2 on 2 [ 22.426317][ T296] F2FS-fs (loop4): Mounted with checkpoint version = 48b305e5 [ 22.434014][ T24] audit: type=1400 audit(1743571272.290:71): avc: denied { mount } for pid=294 comm="syz-executor691" name="/" dev="loop4" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 22.435211][ T297] F2FS-fs (loop2): Found nat_bits in checkpoint [ 22.568039][ T298] F2FS-fs (loop3): Cannot turn on quotas: -2 on 0 [ 22.568903][ T289] F2FS-fs (loop0): Cannot turn on quotas: -2 on 0 [ 22.574352][ T298] F2FS-fs (loop3): Cannot turn on quotas: -2 on 1 [ 22.586977][ T298] F2FS-fs (loop3): Cannot turn on quotas: -2 on 2 [ 22.595841][ T298] F2FS-fs (loop3): Mounted with checkpoint version = 48b305e5 [ 22.601752][ T297] F2FS-fs (loop2): Cannot turn on quotas: -2 on 0 [ 22.603551][ T289] F2FS-fs (loop0): Cannot turn on quotas: -2 on 1 executing program [ 22.615952][ T289] F2FS-fs (loop0): Cannot turn on quotas: -2 on 2 [ 22.622445][ T289] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 [ 22.627680][ T297] F2FS-fs (loop2): Cannot turn on quotas: -2 on 1 [ 22.646258][ T297] F2FS-fs (loop2): Cannot turn on quotas: -2 on 2 [ 22.646760][ T295] F2FS-fs (loop1): Cannot turn on quotas: -2 on 0 [ 22.652836][ T297] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5 [ 22.667766][ T295] F2FS-fs (loop1): Cannot turn on quotas: -2 on 1 [ 22.697566][ T295] F2FS-fs (loop1): Cannot turn on quotas: -2 on 2 [ 22.704235][ T295] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5 [ 22.746261][ T325] ================================================================== [ 22.754184][ T325] BUG: KASAN: null-ptr-deref in kthread_stop+0x3b/0x410 [ 22.760922][ T325] Write of size 4 at addr 0000000000000020 by task syz-executor691/325 [ 22.768985][ T325] [ 22.771170][ T325] CPU: 1 PID: 325 Comm: syz-executor691 Not tainted 5.10.234-syzkaller-00033-g094fc3778d6b #0 [ 22.781226][ T325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 22.791137][ T325] Call Trace: [ 22.794251][ T325] dump_stack_lvl+0x1e2/0x24b [ 22.798764][ T325] ? panic+0x812/0x812 [ 22.802668][ T325] ? bfq_pos_tree_add_move+0x43b/0x43b [ 22.808005][ T325] ? __wake_up+0x120/0x1c0 [ 22.812220][ T325] kasan_report+0x167/0x1c0 [ 22.816557][ T325] ? f2fs_sanity_check_ckpt+0x3040/0x3040 [ 22.822116][ T325] ? kthread_stop+0x3b/0x410 [ 22.826545][ T325] ? kthread_stop+0x3b/0x410 [ 22.830963][ T325] kasan_check_range+0x293/0x2a0 [ 22.835740][ T325] __kasan_check_write+0x14/0x20 [ 22.840510][ T325] kthread_stop+0x3b/0x410 [ 22.844766][ T325] f2fs_stop_gc_thread+0x65/0xb0 [ 22.849539][ T325] __f2fs_ioctl+0x7830/0xda80 [ 22.854054][ T325] ? avc_has_extended_perms+0x1e3/0xf70 [ 22.859450][ T325] ? memcpy+0x56/0x70 [ 22.863251][ T325] ? avc_has_extended_perms+0x975/0xf70 [ 22.868641][ T325] ? avc_ss_reset+0x280/0x280 [ 22.873146][ T325] ? futex_wake+0x630/0x790 [ 22.877490][ T325] ? f2fs_ioctl+0x550/0x550 [ 22.881832][ T325] ? debug_smp_processor_id+0x17/0x20 [ 22.887031][ T325] ? ioctl_has_perm+0x1f8/0x560 [ 22.891721][ T325] ? do_vfs_ioctl+0x798/0x1a30 [ 22.896320][ T325] ? ioctl_has_perm+0x3f0/0x560 [ 22.901017][ T325] ? __kasan_slab_free+0x11/0x20 [ 22.905784][ T325] ? __x32_compat_sys_ioctl+0x90/0x90 [ 22.910994][ T325] ? has_cap_mac_admin+0x3c0/0x3c0 [ 22.915934][ T325] ? putname+0xe7/0x140 [ 22.919927][ T325] ? selinux_file_ioctl+0x3cc/0x540 [ 22.924962][ T325] ? selinux_file_alloc_security+0x120/0x120 [ 22.930778][ T325] ? __fget_files+0x31e/0x380 [ 22.935286][ T325] f2fs_ioctl+0x170/0x550 [ 22.939469][ T325] ? f2fs_precache_extents+0x440/0x440 [ 22.944755][ T325] __se_sys_ioctl+0x114/0x190 [ 22.949265][ T325] __x64_sys_ioctl+0x7b/0x90 [ 22.953694][ T325] do_syscall_64+0x34/0x70 [ 22.957945][ T325] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 22.963736][ T325] RIP: 0033:0x7f819769c089 [ 22.967931][ T325] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 [ 22.987368][ T325] RSP: 002b:00007f8197637168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.995610][ T325] RAX: ffffffffffffffda RBX: 00007f81977296d8 RCX: 00007f819769c089 [ 23.003419][ T325] RDX: 0000200000000140 RSI: 000000008004587d RDI: 0000000000000005 [ 23.011229][ T325] RBP: 00007f81977296d0 R08: 00007f81976376c0 R09: 0000000000000000 [ 23.019040][ T325] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81977296dc [ 23.026854][ T325] R13: 000000000000006e R14: 00007ffc0fbdff00 R15: 00007ffc0fbdffe8 [ 23.034663][ T325] ================================================================== [ 23.042556][ T325] Disabling lock debugging due to kernel taint executing program executing program executing program executing program [ 23.495356][ T325] BUG: kernel NULL pointer dereference, address: 0000000000000020 [ 23.502984][ T325] #PF: supervisor write access in kernel mode [ 23.508883][ T325] #PF: error_code(0x0002) - not-present page [ 23.514692][ T325] PGD 0 P4D 0 [ 23.517919][ T325] Oops: 0002 [#1] PREEMPT SMP KASAN [ 23.523069][ T325] CPU: 0 PID: 325 Comm: syz-executor691 Tainted: G B 5.10.234-syzkaller-00033-g094fc3778d6b #0 [ 23.534522][ T325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 23.544434][ T325] RIP: 0010:kthread_stop+0x40/0x410 [ 23.549466][ T325] Code: 00 fc ff df e8 31 26 24 00 0f 1f 44 00 00 e8 27 26 24 00 4d 8d 74 24 20 4c 89 f7 be 04 00 00 00 e8 55 c7 61 00 bb 01 00 00 00 41 0f c1 5c 24 20 31 ff 89 de e8 b0 29 24 00 85 db 0f 84 2f 01 [ 23.568892][ T325] RSP: 0018:ffffc90000de7838 EFLAGS: 00010246 [ 23.574793][ T325] RAX: ffff88810c911300 RBX: 0000000000000001 RCX: ffff88810c9113c0 [ 23.582695][ T325] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff [ 23.590503][ T325] RBP: ffffc90000de7860 R08: ffffffff813e2b8b R09: 0000000000000003 [ 23.598327][ T325] R10: fffffbfff0e11248 R11: dffffc0000000001 R12: 0000000000000000 [ 23.606137][ T325] R13: dffffc0000000000 R14: 0000000000000020 R15: dffffc0000000000 [ 23.613938][ T325] FS: 00007f81976376c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.622703][ T325] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.629264][ T325] CR2: 0000000000000020 CR3: 000000011d703000 CR4: 00000000003506b0 [ 23.637073][ T325] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.644885][ T325] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.652690][ T325] Call Trace: [ 23.655826][ T325] ? __die_body+0x62/0xb0 [ 23.659989][ T325] ? __die+0x7e/0x90 [ 23.663719][ T325] ? no_context+0x9f9/0xd20 [ 23.668060][ T325] ? is_prefetch+0x5c0/0x5c0 [ 23.672484][ T325] ? preempt_schedule+0xd9/0xe0 [ 23.677290][ T325] ? __kasan_check_read+0x11/0x20 [ 23.682155][ T325] ? preempt_schedule_common+0xbe/0xf0 [ 23.687446][ T325] ? preempt_schedule+0xd9/0xe0 [ 23.692133][ T325] ? __bad_area_nosemaphore+0xc4/0x430 [ 23.697446][ T325] ? bad_area_nosemaphore+0x2d/0x40 [ 23.702463][ T325] ? exc_page_fault+0x3df/0x5b0 [ 23.707147][ T325] ? asm_exc_page_fault+0x1e/0x30 [ 23.712010][ T325] ? check_panic_on_warn+0x5b/0xb0 [ 23.717063][ T325] ? kthread_stop+0x40/0x410 [ 23.721489][ T325] ? kthread_stop+0x3b/0x410 [ 23.725915][ T325] f2fs_stop_gc_thread+0x65/0xb0 [ 23.730688][ T325] __f2fs_ioctl+0x7830/0xda80 [ 23.735203][ T325] ? avc_has_extended_perms+0x1e3/0xf70 [ 23.740582][ T325] ? memcpy+0x56/0x70 [ 23.744402][ T325] ? avc_has_extended_perms+0x975/0xf70 [ 23.749783][ T325] ? avc_ss_reset+0x280/0x280 [ 23.754292][ T325] ? futex_wake+0x630/0x790 [ 23.758636][ T325] ? f2fs_ioctl+0x550/0x550 [ 23.762978][ T325] ? debug_smp_processor_id+0x17/0x20 [ 23.768185][ T325] ? ioctl_has_perm+0x1f8/0x560 [ 23.772883][ T325] ? do_vfs_ioctl+0x798/0x1a30 [ 23.777474][ T325] ? ioctl_has_perm+0x3f0/0x560 [ 23.782162][ T325] ? __kasan_slab_free+0x11/0x20 [ 23.786932][ T325] ? __x32_compat_sys_ioctl+0x90/0x90 [ 23.792141][ T325] ? has_cap_mac_admin+0x3c0/0x3c0 [ 23.797090][ T325] ? putname+0xe7/0x140 [ 23.801090][ T325] ? selinux_file_ioctl+0x3cc/0x540 [ 23.806115][ T325] ? selinux_file_alloc_security+0x120/0x120 [ 23.811928][ T325] ? __fget_files+0x31e/0x380 [ 23.816439][ T325] f2fs_ioctl+0x170/0x550 [ 23.820605][ T325] ? f2fs_precache_extents+0x440/0x440 [ 23.825897][ T325] __se_sys_ioctl+0x114/0x190 [ 23.830413][ T325] __x64_sys_ioctl+0x7b/0x90 [ 23.834837][ T325] do_syscall_64+0x34/0x70 [ 23.839177][ T325] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.844912][ T325] RIP: 0033:0x7f819769c089 [ 23.849159][ T325] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 [ 23.868692][ T325] RSP: 002b:00007f8197637168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.876941][ T325] RAX: ffffffffffffffda RBX: 00007f81977296d8 RCX: 00007f819769c089 [ 23.884761][ T325] RDX: 0000200000000140 RSI: 000000008004587d RDI: 0000000000000005 [ 23.892562][ T325] RBP: 00007f81977296d0 R08: 00007f81976376c0 R09: 0000000000000000 [ 23.900381][ T325] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81977296dc [ 23.908182][ T325] R13: 000000000000006e R14: 00007ffc0fbdff00 R15: 00007ffc0fbdffe8 [ 23.915999][ T325] Modules linked in: [ 23.919742][ T325] CR2: 0000000000000020 [ 23.923733][ T325] ---[ end trace 4ec8bd11c35cfc07 ]--- [ 23.929048][ T325] RIP: 0010:kthread_stop+0x40/0x410 [ 23.934052][ T325] Code: 00 fc ff df e8 31 26 24 00 0f 1f 44 00 00 e8 27 26 24 00 4d 8d 74 24 20 4c 89 f7 be 04 00 00 00 e8 55 c7 61 00 bb 01 00 00 00 41 0f c1 5c 24 20 31 ff 89 de e8 b0 29 24 00 85 db 0f 84 2f 01 [ 23.953580][ T325] RSP: 0018:ffffc90000de7838 EFLAGS: 00010246 [ 23.959480][ T325] RAX: ffff88810c911300 RBX: 0000000000000001 RCX: ffff88810c9113c0 [ 23.967291][ T325] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff [ 23.975099][ T325] RBP: ffffc90000de7860 R08: ffffffff813e2b8b R09: 0000000000000003 [ 23.982909][ T325] R10: fffffbfff0e11248 R11: dffffc0000000001 R12: 0000000000000000 [ 23.990723][ T325] R13: dffffc0000000000 R14: 0000000000000020 R15: dffffc0000000000 [ 23.998547][ T325] FS: 00007f81976376c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.007308][ T325] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.013726][ T325] CR2: 0000000000000020 CR3: 000000011d703000 CR4: 00000000003506b0 [ 24.021540][ T325] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.029343][ T325] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.037155][ T325] Kernel panic - not syncing: Fatal exception [ 24.043337][ T325] Kernel Offset: disabled [ 24.047468][ T325] Rebooting in 86400 seconds..