./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2748855235 <...> Warning: Permanently added '10.128.1.46' (ED25519) to the list of known hosts. execve("./syz-executor2748855235", ["./syz-executor2748855235"], 0x7ffd97fd9320 /* 10 vars */) = 0 brk(NULL) = 0x55557d1c0000 brk(0x55557d1c0d00) = 0x55557d1c0d00 arch_prctl(ARCH_SET_FS, 0x55557d1c0380) = 0 set_tid_address(0x55557d1c0650) = 5832 set_robust_list(0x55557d1c0660, 24) = 0 rseq(0x55557d1c0ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2748855235", 4096) = 28 getrandom("\x0c\x82\x23\xee\xd2\x83\x23\x5d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557d1c0d00 brk(0x55557d1e1d00) = 0x55557d1e1d00 brk(0x55557d1e2000) = 0x55557d1e2000 mprotect(0x7fcd524e6000, 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 executing program write(1, "executing program\n", 18) = 18 memfd_create("\xff", MFD_CLOEXEC|MFD_ALLOW_SEALING|MFD_HUGETLB) = 3 mmap(0x20000000, 8192, PROT_WRITE|PROT_SEM, MAP_SHARED|MAP_FIXED|MAP_NORESERVE|MAP_POPULATE|MAP_EXECUTABLE|MAP_HUGETLB|0x80, 3, 0x20000000) = 0x20000000 fcntl(3, F_ADD_SEALS, F_SEAL_SHRINK) = 0 openat(AT_FDCWD, 0x20000000, O_RDWR) = 4 [ 67.790802][ T5832] ------------[ cut here ]------------ [ 67.796360][ T5832] kernel BUG at mm/hugetlb.c:2333! [ 67.801486][ T5832] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 67.808417][ T5832] CPU: 0 UID: 0 PID: 5832 Comm: syz-executor274 Not tainted 6.13.0-syzkaller-09760-g69e858e0b8b2 #0 [ 67.819188][ T5832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 67.829249][ T5832] RIP: 0010:alloc_hugetlb_folio_reserve+0xbc/0xc0 [ 67.835873][ T5832] Code: 1f eb 05 e8 c6 e9 9f ff 48 c7 c7 40 56 61 8e e8 1a 9b d8 09 4c 89 f0 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 a5 e9 9f ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f [ 67.855475][ T5832] RSP: 0018:ffffc90003e3f7f8 EFLAGS: 00010093 [ 67.861538][ T5832] RAX: ffffffff821f831b RBX: 0000000000000000 RCX: ffff888034813c00 [ 67.869503][ T5832] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 67.877465][ T5832] RBP: 1ffffffff348b4d1 R08: ffffffff821f82d3 R09: 1ffffd40005a2005 [ 67.885427][ T5832] R10: dffffc0000000000 R11: fffff940005a2006 R12: dffffc0000000000 [ 67.893389][ T5832] R13: dffffc0000000000 R14: ffffea0002d10000 R15: ffffffff9a45a688 [ 67.901384][ T5832] FS: 000055557d1c0380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 67.910308][ T5832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.916897][ T5832] CR2: 0000563d6d164000 CR3: 000000007abaa000 CR4: 00000000003526f0 [ 67.924862][ T5832] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.932824][ T5832] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.940790][ T5832] Call Trace: [ 67.944064][ T5832] [ 67.946985][ T5832] ? __die_body+0x5f/0xb0 [ 67.951321][ T5832] ? die+0x9e/0xc0 [ 67.955044][ T5832] ? do_trap+0x15a/0x3a0 [ 67.959297][ T5832] ? alloc_hugetlb_folio_reserve+0xbc/0xc0 [ 67.965101][ T5832] ? do_error_trap+0x1dc/0x2c0 [ 67.969858][ T5832] ? alloc_hugetlb_folio_reserve+0xbc/0xc0 [ 67.975662][ T5832] ? __pfx_do_error_trap+0x10/0x10 [ 67.980769][ T5832] ? report_bug+0x3cd/0x500 [ 67.985278][ T5832] ? handle_invalid_op+0x34/0x40 [ 67.990253][ T5832] ? alloc_hugetlb_folio_reserve+0xbc/0xc0 [ 67.996062][ T5832] ? exc_invalid_op+0x38/0x50 [ 68.000737][ T5832] ? asm_exc_invalid_op+0x1a/0x20 [ 68.005763][ T5832] ? alloc_hugetlb_folio_reserve+0x73/0xc0 [ 68.011566][ T5832] ? alloc_hugetlb_folio_reserve+0xbb/0xc0 [ 68.017369][ T5832] ? alloc_hugetlb_folio_reserve+0xbc/0xc0 [ 68.023178][ T5832] ? alloc_hugetlb_folio_reserve+0xbb/0xc0 [ 68.028997][ T5832] memfd_alloc_folio+0x1bd/0x370 [ 68.033958][ T5832] memfd_pin_folios+0xf10/0x1570 [ 68.038907][ T5832] ? __pfx_memfd_pin_folios+0x10/0x10 [ 68.044289][ T5832] ? __fget_files+0x2a/0x410 [ 68.048874][ T5832] ? __fget_files+0x395/0x410 [ 68.053549][ T5832] ? __fget_files+0x2a/0x410 [ 68.058136][ T5832] udmabuf_create+0x70e/0x10c0 [ 68.062920][ T5832] ? __pfx_udmabuf_create+0x10/0x10 [ 68.068130][ T5832] ? __might_fault+0xaa/0x120 [ 68.072822][ T5832] udmabuf_ioctl+0x301/0x4e0 [ 68.077417][ T5832] ? __pfx_udmabuf_ioctl+0x10/0x10 [ 68.082615][ T5832] ? __pfx_ptrace_notify+0x10/0x10 [ 68.087721][ T5832] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 68.094050][ T5832] ? __pfx_udmabuf_ioctl+0x10/0x10 [ 68.099198][ T5832] __se_sys_ioctl+0xf5/0x170 [ 68.103827][ T5832] do_syscall_64+0xf3/0x230 [ 68.108330][ T5832] ? clear_bhb_loop+0x35/0x90 [ 68.113005][ T5832] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.118899][ T5832] RIP: 0033:0x7fcd524733a9 [ 68.123312][ T5832] 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 [ 68.142909][ T5832] RSP: 002b:00007ffddb5cce58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 68.151321][ T5832] RAX: ffffffffffffffda RBX: 00007ffddb5cd028 RCX: 00007fcd524733a9 [ 68.159294][ T5832] RDX: 0000000020000040 RSI: 0000000040187542 RDI: 0000000000000004 [ 68.167271][ T5832] RBP: 00007fcd524e6610 R08: 0000000020000000 R09: 00007ffddb5cd028 [ 68.175240][ T5832] R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000001 [ 68.183237][ T5832] R13: 00007ffddb5cd018 R14: 0000000000000001 R15: 0000000000000001 [ 68.191219][ T5832] [ 68.194239][ T5832] Modules linked in: [ 68.198149][ T5832] ---[ end trace 0000000000000000 ]--- [ 68.203600][ T5832] RIP: 0010:alloc_hugetlb_folio_reserve+0xbc/0xc0 [ 68.210030][ T5832] Code: 1f eb 05 e8 c6 e9 9f ff 48 c7 c7 40 56 61 8e e8 1a 9b d8 09 4c 89 f0 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 a5 e9 9f ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f [ 68.229655][ T5832] RSP: 0018:ffffc90003e3f7f8 EFLAGS: 00010093 [ 68.235733][ T5832] RAX: ffffffff821f831b RBX: 0000000000000000 RCX: ffff888034813c00 [ 68.243714][ T5832] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 68.251688][ T5832] RBP: 1ffffffff348b4d1 R08: ffffffff821f82d3 R09: 1ffffd40005a2005 [ 68.259663][ T5832] R10: dffffc0000000000 R11: fffff940005a2006 R12: dffffc0000000000 [ 68.267631][ T5832] R13: dffffc0000000000 R14: ffffea0002d10000 R15: ffffffff9a45a688 [ 68.275609][ T5832] FS: 000055557d1c0380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 68.284539][ T5832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.291118][ T5832] CR2: 0000563d6d164000 CR3: 000000007abaa000 CR4: 00000000003526f0 [ 68.299091][ T5832] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.307064][ T5832] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.315042][ T5832] Kernel panic - not syncing: Fatal exception [ 68.321324][ T5832] Kernel Offset: disabled [ 68.325643][ T5832] Rebooting in 86400 seconds..