./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2966775480 <...> Warning: Permanently added '10.128.0.46' (ED25519) to the list of known hosts. execve("./syz-executor2966775480", ["./syz-executor2966775480"], 0x7ffc725abf20 /* 10 vars */) = 0 brk(NULL) = 0x55557d2fe000 brk(0x55557d2fed00) = 0x55557d2fed00 arch_prctl(ARCH_SET_FS, 0x55557d2fe380) = 0 set_tid_address(0x55557d2fe650) = 5066 set_robust_list(0x55557d2fe660, 24) = 0 rseq(0x55557d2feca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2966775480", 4096) = 28 getrandom("\x3c\xcf\x74\xb0\x44\x42\x78\x2e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557d2fed00 brk(0x55557d31fd00) = 0x55557d31fd00 brk(0x55557d320000) = 0x55557d320000 mprotect(0x7f6484f9d000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 [ 75.666827][ T5066] ------------[ cut here ]------------ [ 75.672461][ T5066] verifier backtracking bug [ 75.672562][ T5066] WARNING: CPU: 0 PID: 5066 at kernel/bpf/verifier.c:3714 __mark_chain_precision+0x7027/0x7520 [ 75.687863][ T5066] Modules linked in: [ 75.691874][ T5066] CPU: 0 PID: 5066 Comm: syz-executor296 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 75.702677][ T5066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 75.713175][ T5066] RIP: 0010:__mark_chain_precision+0x7027/0x7520 [ 75.719867][ T5066] Code: 8b e8 ed df b0 ff 90 0f 0b 90 90 e9 7d f2 ff ff e8 9e 0b ee ff c6 05 41 c2 c9 0d 01 90 48 c7 c7 c0 af b0 8b e8 ca df b0 ff 90 <0f> 0b 90 90 e9 5a f2 ff ff e8 7b 0b ee ff c6 05 1f c2 c9 0d 01 90 [ 75.740218][ T5066] RSP: 0018:ffffc900043f6ac0 EFLAGS: 00010246 [ 75.747268][ T5066] RAX: 3bf0d782b73e5400 RBX: ffff8880236c5600 RCX: ffff88802a9dbc00 [ 75.755314][ T5066] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 75.763357][ T5066] RBP: ffffc900043f6d10 R08: ffffffff8157cb22 R09: 1ffff110172851a2 [ 75.772020][ T5066] R10: dffffc0000000000 R11: ffffed10172851a3 R12: 0000000080000000 [ 75.780497][ T5066] R13: 0000000000000010 R14: 0000000000000001 R15: ffff8880236c0000 [ 75.788560][ T5066] FS: 000055557d2fe380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 75.798543][ T5066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.805385][ T5066] CR2: 0000000020000082 CR3: 00000000231d4000 CR4: 00000000003506f0 [ 75.814386][ T5066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.822580][ T5066] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.830697][ T5066] Call Trace: [ 75.834056][ T5066] [ 75.837082][ T5066] ? __warn+0x163/0x4b0 [ 75.841301][ T5066] ? __mark_chain_precision+0x7027/0x7520 [ 75.847132][ T5066] ? report_bug+0x2b3/0x500 [ 75.851692][ T5066] ? __mark_chain_precision+0x7027/0x7520 [ 75.857540][ T5066] ? handle_bug+0x3e/0x70 [ 75.861918][ T5066] ? exc_invalid_op+0x1a/0x50 [ 75.866719][ T5066] ? asm_exc_invalid_op+0x1a/0x20 [ 75.871807][ T5066] ? __warn_printk+0x292/0x360 [ 75.876686][ T5066] ? __mark_chain_precision+0x7027/0x7520 [ 75.882482][ T5066] ? poison_slab_object+0xa6/0xe0 [ 75.887630][ T5066] ? __pfx___mark_chain_precision+0x10/0x10 [ 75.893589][ T5066] ? __pfx_verbose+0x10/0x10 [ 75.898393][ T5066] ? __pfx_disasm_kfunc_name+0x10/0x10 [ 75.907176][ T5066] check_return_code+0xbe0/0x11e0 [ 75.912349][ T5066] do_check+0xb91f/0x10500 [ 75.917024][ T5066] ? __pfx_do_check+0x10/0x10 [ 75.921875][ T5066] ? mark_reg_not_init+0xd4/0x4b0 [ 75.927216][ T5066] ? __asan_memcpy+0x40/0x70 [ 75.931903][ T5066] ? mark_reg_not_init+0xd4/0x4b0 [ 75.937047][ T5066] do_check_common+0x14bd/0x1dd0 [ 75.942068][ T5066] bpf_check+0x136ab/0x19010 [ 75.946775][ T5066] ? __pfx_validate_chain+0x10/0x10 [ 75.952066][ T5066] ? validate_chain+0x11b/0x58e0 [ 75.957195][ T5066] ? mark_lock+0x9a/0x350 [ 75.961605][ T5066] ? validate_chain+0x11b/0x58e0 [ 75.966914][ T5066] ? __lock_acquire+0x1346/0x1fd0 [ 75.972170][ T5066] ? validate_chain+0x11b/0x58e0 [ 75.977286][ T5066] ? validate_chain+0x11b/0x58e0 [ 75.982369][ T5066] ? __pfx_bpf_check+0x10/0x10 [ 75.987244][ T5066] ? validate_chain+0x11b/0x58e0 [ 75.992331][ T5066] ? __pfx_validate_chain+0x10/0x10 [ 75.997868][ T5066] ? mark_lock+0x9a/0x350 [ 76.002355][ T5066] ? __pfx_validate_chain+0x10/0x10 [ 76.007656][ T5066] ? mark_lock+0x9a/0x350 [ 76.012027][ T5066] ? __pfx_validate_chain+0x10/0x10 [ 76.017425][ T5066] ? __lock_acquire+0x1346/0x1fd0 [ 76.022532][ T5066] ? mark_lock+0x9a/0x350 [ 76.027476][ T5066] ? __lock_acquire+0x1346/0x1fd0 [ 76.032564][ T5066] ? mark_lock+0x9a/0x350 [ 76.037006][ T5066] ? __lock_acquire+0x1346/0x1fd0 [ 76.042125][ T5066] ? __pfx_lock_acquire+0x10/0x10 [ 76.047530][ T5066] ? ktime_get_with_offset+0x105/0x330 [ 76.053138][ T5066] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 76.059193][ T5066] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 76.065790][ T5066] ? ktime_get_with_offset+0x105/0x330 [ 76.071360][ T5066] ? seqcount_lockdep_reader_access+0x157/0x220 [ 76.077698][ T5066] ? lockdep_hardirqs_on+0x99/0x150 [ 76.083849][ T5066] ? seqcount_lockdep_reader_access+0x1d7/0x220 [ 76.090356][ T5066] ? __pfx_seqcount_lockdep_reader_access+0x10/0x10 [ 76.097236][ T5066] ? __check_object_size+0x8e/0xa00 [ 76.102489][ T5066] ? bpf_obj_name_cpy+0x18a/0x1d0 [ 76.107648][ T5066] ? bpf_lsm_bpf_prog_load+0x9/0x10 [ 76.112995][ T5066] ? security_bpf_prog_load+0x87/0xb0 [ 76.118601][ T5066] bpf_prog_load+0x1667/0x20f0 [ 76.124640][ T5066] ? __pfx_bpf_prog_load+0x10/0x10 [ 76.129922][ T5066] ? __pfx___might_resched+0x10/0x10 [ 76.135513][ T5066] ? __might_fault+0xc6/0x120 [ 76.140283][ T5066] ? bpf_lsm_bpf+0x9/0x10 [ 76.145147][ T5066] ? security_bpf+0x87/0xb0 [ 76.149817][ T5066] __sys_bpf+0x4ee/0x810 [ 76.154440][ T5066] ? __pfx___sys_bpf+0x10/0x10 [ 76.159531][ T5066] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 76.166063][ T5066] ? exc_page_fault+0x585/0x890 [ 76.170979][ T5066] __x64_sys_bpf+0x7c/0x90 [ 76.175509][ T5066] do_syscall_64+0xfb/0x240 [ 76.180073][ T5066] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 76.186168][ T5066] RIP: 0033:0x7f6484f2a469 [ 76.190726][ T5066] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 76.211355][ T5066] RSP: 002b:00007ffc85bd0a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 76.219885][ T5066] RAX: ffffffffffffffda RBX: 00007ffc85bd0be8 RCX: 00007f6484f2a469 [ 76.228410][ T5066] RDX: 0000000000000090 RSI: 0000000020000600 RDI: 0000000000000005 [ 76.236762][ T5066] RBP: 00007f6484f9d610 R08: 0000000000000000 R09: 0000000000000000 [ 76.244859][ T5066] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 76.253262][ T5066] R13: 00007ffc85bd0bd8 R14: 0000000000000001 R15: 0000000000000001 [ 76.261514][ T5066] [ 76.264823][ T5066] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 76.273014][ T5066] CPU: 0 PID: 5066 Comm: syz-executor296 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 76.283384][ T5066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 76.293665][ T5066] Call Trace: [ 76.297235][ T5066] [ 76.300185][ T5066] dump_stack_lvl+0x241/0x360 [ 76.304900][ T5066] ? __pfx_dump_stack_lvl+0x10/0x10 [ 76.310194][ T5066] ? __pfx__printk+0x10/0x10 [ 76.314888][ T5066] ? vscnprintf+0x5d/0x90 [ 76.319779][ T5066] panic+0x349/0x860 [ 76.323729][ T5066] ? __warn+0x172/0x4b0 [ 76.327946][ T5066] ? __pfx_panic+0x10/0x10 [ 76.332514][ T5066] __warn+0x31e/0x4b0 [ 76.336535][ T5066] ? __mark_chain_precision+0x7027/0x7520 [ 76.342472][ T5066] report_bug+0x2b3/0x500 [ 76.346847][ T5066] ? __mark_chain_precision+0x7027/0x7520 [ 76.352622][ T5066] handle_bug+0x3e/0x70 [ 76.356820][ T5066] exc_invalid_op+0x1a/0x50 [ 76.361541][ T5066] asm_exc_invalid_op+0x1a/0x20 [ 76.366417][ T5066] RIP: 0010:__mark_chain_precision+0x7027/0x7520 [ 76.372966][ T5066] Code: 8b e8 ed df b0 ff 90 0f 0b 90 90 e9 7d f2 ff ff e8 9e 0b ee ff c6 05 41 c2 c9 0d 01 90 48 c7 c7 c0 af b0 8b e8 ca df b0 ff 90 <0f> 0b 90 90 e9 5a f2 ff ff e8 7b 0b ee ff c6 05 1f c2 c9 0d 01 90 [ 76.392729][ T5066] RSP: 0018:ffffc900043f6ac0 EFLAGS: 00010246 [ 76.398834][ T5066] RAX: 3bf0d782b73e5400 RBX: ffff8880236c5600 RCX: ffff88802a9dbc00 [ 76.406838][ T5066] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 76.414927][ T5066] RBP: ffffc900043f6d10 R08: ffffffff8157cb22 R09: 1ffff110172851a2 [ 76.422935][ T5066] R10: dffffc0000000000 R11: ffffed10172851a3 R12: 0000000080000000 [ 76.431011][ T5066] R13: 0000000000000010 R14: 0000000000000001 R15: ffff8880236c0000 [ 76.439085][ T5066] ? __warn_printk+0x292/0x360 [ 76.443888][ T5066] ? poison_slab_object+0xa6/0xe0 [ 76.448952][ T5066] ? __pfx___mark_chain_precision+0x10/0x10 [ 76.455127][ T5066] ? __pfx_verbose+0x10/0x10 [ 76.459764][ T5066] ? __pfx_disasm_kfunc_name+0x10/0x10 [ 76.465431][ T5066] check_return_code+0xbe0/0x11e0 [ 76.470481][ T5066] do_check+0xb91f/0x10500 [ 76.474958][ T5066] ? __pfx_do_check+0x10/0x10 [ 76.479663][ T5066] ? mark_reg_not_init+0xd4/0x4b0 [ 76.484711][ T5066] ? __asan_memcpy+0x40/0x70 [ 76.489585][ T5066] ? mark_reg_not_init+0xd4/0x4b0 [ 76.494725][ T5066] do_check_common+0x14bd/0x1dd0 [ 76.499693][ T5066] bpf_check+0x136ab/0x19010 [ 76.504414][ T5066] ? __pfx_validate_chain+0x10/0x10 [ 76.509984][ T5066] ? validate_chain+0x11b/0x58e0 [ 76.515117][ T5066] ? mark_lock+0x9a/0x350 [ 76.519546][ T5066] ? validate_chain+0x11b/0x58e0 [ 76.524506][ T5066] ? __lock_acquire+0x1346/0x1fd0 [ 76.529549][ T5066] ? validate_chain+0x11b/0x58e0 [ 76.534506][ T5066] ? validate_chain+0x11b/0x58e0 [ 76.539468][ T5066] ? __pfx_bpf_check+0x10/0x10 [ 76.544252][ T5066] ? validate_chain+0x11b/0x58e0 [ 76.549224][ T5066] ? __pfx_validate_chain+0x10/0x10 [ 76.554437][ T5066] ? mark_lock+0x9a/0x350 [ 76.558777][ T5066] ? __pfx_validate_chain+0x10/0x10 [ 76.564070][ T5066] ? mark_lock+0x9a/0x350 [ 76.568411][ T5066] ? __pfx_validate_chain+0x10/0x10 [ 76.574267][ T5066] ? __lock_acquire+0x1346/0x1fd0 [ 76.579350][ T5066] ? mark_lock+0x9a/0x350 [ 76.583716][ T5066] ? __lock_acquire+0x1346/0x1fd0 [ 76.588790][ T5066] ? mark_lock+0x9a/0x350 [ 76.593220][ T5066] ? __lock_acquire+0x1346/0x1fd0 [ 76.598295][ T5066] ? __pfx_lock_acquire+0x10/0x10 [ 76.603332][ T5066] ? ktime_get_with_offset+0x105/0x330 [ 76.608813][ T5066] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 76.614901][ T5066] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 76.621261][ T5066] ? ktime_get_with_offset+0x105/0x330 [ 76.626764][ T5066] ? seqcount_lockdep_reader_access+0x157/0x220 [ 76.633137][ T5066] ? lockdep_hardirqs_on+0x99/0x150 [ 76.639520][ T5066] ? seqcount_lockdep_reader_access+0x1d7/0x220 [ 76.646663][ T5066] ? __pfx_seqcount_lockdep_reader_access+0x10/0x10 [ 76.653295][ T5066] ? __check_object_size+0x8e/0xa00 [ 76.659337][ T5066] ? bpf_obj_name_cpy+0x18a/0x1d0 [ 76.664483][ T5066] ? bpf_lsm_bpf_prog_load+0x9/0x10 [ 76.669791][ T5066] ? security_bpf_prog_load+0x87/0xb0 [ 76.675189][ T5066] bpf_prog_load+0x1667/0x20f0 [ 76.680008][ T5066] ? __pfx_bpf_prog_load+0x10/0x10 [ 76.685137][ T5066] ? __pfx___might_resched+0x10/0x10 [ 76.690452][ T5066] ? __might_fault+0xc6/0x120 [ 76.695150][ T5066] ? bpf_lsm_bpf+0x9/0x10 [ 76.699495][ T5066] ? security_bpf+0x87/0xb0 [ 76.704102][ T5066] __sys_bpf+0x4ee/0x810 [ 76.708382][ T5066] ? __pfx___sys_bpf+0x10/0x10 [ 76.713181][ T5066] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 76.719542][ T5066] ? exc_page_fault+0x585/0x890 [ 76.724860][ T5066] __x64_sys_bpf+0x7c/0x90 [ 76.729290][ T5066] do_syscall_64+0xfb/0x240 [ 76.733812][ T5066] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 76.739914][ T5066] RIP: 0033:0x7f6484f2a469 [ 76.744604][ T5066] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 76.764502][ T5066] RSP: 002b:00007ffc85bd0a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 76.773637][ T5066] RAX: ffffffffffffffda RBX: 00007ffc85bd0be8 RCX: 00007f6484f2a469 [ 76.781683][ T5066] RDX: 0000000000000090 RSI: 0000000020000600 RDI: 0000000000000005 [ 76.789693][ T5066] RBP: 00007f6484f9d610 R08: 0000000000000000 R09: 0000000000000000 [ 76.797891][ T5066] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 76.805924][ T5066] R13: 00007ffc85bd0bd8 R14: 0000000000000001 R15: 0000000000000001 [ 76.814821][ T5066] [ 76.818151][ T5066] Kernel Offset: disabled [ 76.822535][ T5066] Rebooting in 86400 seconds..