./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor999883178 <...> Warning: Permanently added '10.128.1.15' (ED25519) to the list of known hosts. execve("./syz-executor999883178", ["./syz-executor999883178"], 0x7ffd8bc21140 /* 10 vars */) = 0 brk(NULL) = 0x555555f06000 brk(0x555555f06d00) = 0x555555f06d00 arch_prctl(ARCH_SET_FS, 0x555555f06380) = 0 set_tid_address(0x555555f06650) = 5041 set_robust_list(0x555555f06660, 24) = 0 rseq(0x555555f06ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor999883178", 4096) = 27 getrandom("\x93\x1c\xbf\x82\x1b\x6c\xeb\xac", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555f06d00 brk(0x555555f27d00) = 0x555555f27d00 brk(0x555555f28000) = 0x555555f28000 mprotect(0x7f734952d000, 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 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f734107c000 write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 munmap(0x7f734107c000, 524288) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 [ 90.145125][ T5041] syz-executor999[5041]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 90.166126][ T5041] loop0: detected capacity change from 0 to 1024 [ 90.231733][ T5041] EXT4-fs (loop0): Test dummy encryption mode enabled [ 90.238827][ T5041] EXT4-fs (loop0): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock [ 90.248603][ T5041] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (394!=20869) [ 90.259010][ T5041] EXT4-fs error (device loop0): ext4_get_journal_inode:5719: comm syz-executor999: inode #33: comm syz-executor999: iget: illegal inode # [ 90.273477][ T5041] EXT4-fs (loop0): no journal found [ 90.278740][ T5041] BUG: unable to handle page fault for address: ffffffffffffffdb [ 90.286452][ T5041] #PF: supervisor read access in kernel mode [ 90.292428][ T5041] #PF: error_code(0x0000) - not-present page [ 90.298405][ T5041] PGD c979067 P4D c979067 PUD c97b067 PMD 0 [ 90.304410][ T5041] Oops: 0000 [#1] PREEMPT SMP KASAN [ 90.309620][ T5041] CPU: 1 PID: 5041 Comm: syz-executor999 Not tainted 6.5.0-rc7-next-20230821-syzkaller #0 [ 90.319775][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 90.329859][ T5041] RIP: 0010:ext4_calculate_overhead+0xfd2/0x1380 [ 90.336217][ T5041] Code: 7b 50 48 89 fa 48 c1 ea 03 44 0f b6 60 14 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 72 03 00 00 44 89 e6 bf 3f 00 00 00 <48> 8b 6b 50 e8 95 20 43 ff 41 80 fc 3f 0f 87 cb 20 ef 07 e8 56 25 [ 90.355838][ T5041] RSP: 0018:ffffc9000399fa00 EFLAGS: 00010246 [ 90.361921][ T5041] RAX: dffffc0000000000 RBX: ffffffffffffff8b RCX: 0000000000000000 [ 90.369911][ T5041] RDX: 1ffffffffffffffb RSI: 000000000000000a RDI: 000000000000003f [ 90.377898][ T5041] RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 [ 90.385888][ T5041] R10: 0000000080000000 R11: 0000000000000001 R12: 000000000000000a [ 90.393872][ T5041] R13: ffff888020936000 R14: dffffc0000000000 R15: ffff8880242a4000 [ 90.401877][ T5041] FS: 0000555555f06380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 90.410836][ T5041] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.417454][ T5041] CR2: ffffffffffffffdb CR3: 0000000074f9b000 CR4: 00000000003506e0 [ 90.425442][ T5041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.433426][ T5041] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.441503][ T5041] Call Trace: [ 90.444798][ T5041] [ 90.447760][ T5041] ? show_regs+0x8f/0xa0 [ 90.452031][ T5041] ? __die+0x2c/0x80 [ 90.455947][ T5041] ? page_fault_oops+0x398/0xad0 [ 90.460911][ T5041] ? reacquire_held_locks+0x4b0/0x4b0 [ 90.466316][ T5041] ? dump_pagetable+0x530/0x530 [ 90.471198][ T5041] ? search_extable+0x83/0xb0 [ 90.475914][ T5041] ? is_prefetch.constprop.0+0xb6/0x550 [ 90.481497][ T5041] ? __module_address+0x55/0x3b0 [ 90.486476][ T5041] ? bpf_ksym_find+0x124/0x1b0 [ 90.491277][ T5041] ? pgtable_bad+0x80/0x80 [ 90.495723][ T5041] ? fixup_exception+0x110/0xc90 [ 90.500695][ T5041] ? kernelmode_fixup_or_oops+0x23c/0x2b0 [ 90.506449][ T5041] ? __bad_area_nosemaphore+0x390/0x6a0 [ 90.512025][ T5041] ? spurious_kernel_fault+0x2f4/0x3c0 [ 90.517510][ T5041] ? __ext4_msg+0x1b4/0x260 [ 90.522048][ T5041] ? do_kern_addr_fault+0x5b/0x70 [ 90.527095][ T5041] ? exc_page_fault+0xba/0xd0 [ 90.531812][ T5041] ? asm_exc_page_fault+0x26/0x30 [ 90.536886][ T5041] ? ext4_calculate_overhead+0xfd2/0x1380 [ 90.542674][ T5041] ext4_fill_super+0x85e3/0xade0 [ 90.547667][ T5041] ? snprintf+0xc8/0x100 [ 90.551934][ T5041] ? ext4_reconfigure+0x2c40/0x2c40 [ 90.557168][ T5041] ? preempt_count_sub+0x150/0x150 [ 90.562320][ T5041] ? do_raw_spin_lock+0x12e/0x2b0 [ 90.567386][ T5041] ? down_write+0x14f/0x200 [ 90.571931][ T5041] ? down_write_killable_nested+0x250/0x250 [ 90.577861][ T5041] ? sb_set_blocksize+0xf6/0x120 [ 90.582864][ T5041] ? setup_bdev_super+0x366/0x6f0 [ 90.587936][ T5041] get_tree_bdev+0x390/0x630 [ 90.592572][ T5041] ? ext4_reconfigure+0x2c40/0x2c40 [ 90.597813][ T5041] ? get_tree_keyed+0x1c0/0x1c0 [ 90.602701][ T5041] ? bpf_lsm_capable+0x9/0x10 [ 90.607405][ T5041] ? security_capable+0x92/0xc0 [ 90.612299][ T5041] vfs_get_tree+0x88/0x350 [ 90.616753][ T5041] path_mount+0x1492/0x1ed0 [ 90.621289][ T5041] ? kmem_cache_free+0xf0/0x480 [ 90.626177][ T5041] ? finish_automount+0xa50/0xa50 [ 90.631238][ T5041] ? putname+0x101/0x140 [ 90.635508][ T5041] __x64_sys_mount+0x293/0x310 [ 90.640312][ T5041] ? copy_mnt_ns+0xb60/0xb60 [ 90.644950][ T5041] ? _raw_spin_unlock_irq+0x2e/0x50 [ 90.650173][ T5041] ? ptrace_notify+0xf4/0x130 [ 90.654876][ T5041] do_syscall_64+0x38/0xb0 [ 90.659331][ T5041] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 90.665264][ T5041] RIP: 0033:0x7f73494babba [ 90.669702][ T5041] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 90.689352][ T5041] RSP: 002b:00007fffae0148e8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 [ 90.697797][ T5041] RAX: ffffffffffffffda RBX: 00007fffae0148f0 RCX: 00007f73494babba [ 90.705785][ T5041] RDX: 00000000200000c0 RSI: 0000000020000040 RDI: 00007fffae0148f0 [ 90.713787][ T5041] RBP: 0000000000000004 R08: 00007fffae014930 R09: 00007fffae014930 [ 90.721777][ T5041] R10: 0000000001000403 R11: 0000000000000202 R12: 00007fffae014930 [ 90.729797][ T5041] R13: 0000000000000003 R14: 0000000000080000 R15: 0000000000000001 [ 90.737807][ T5041] [ 90.740863][ T5041] Modules linked in: [ 90.744768][ T5041] CR2: ffffffffffffffdb [ 90.748930][ T5041] ---[ end trace 0000000000000000 ]--- [ 90.754405][ T5041] RIP: 0010:ext4_calculate_overhead+0xfd2/0x1380 [ 90.760784][ T5041] Code: 7b 50 48 89 fa 48 c1 ea 03 44 0f b6 60 14 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 72 03 00 00 44 89 e6 bf 3f 00 00 00 <48> 8b 6b 50 e8 95 20 43 ff 41 80 fc 3f 0f 87 cb 20 ef 07 e8 56 25 [ 90.780433][ T5041] RSP: 0018:ffffc9000399fa00 EFLAGS: 00010246 [ 90.786522][ T5041] RAX: dffffc0000000000 RBX: ffffffffffffff8b RCX: 0000000000000000 [ 90.794511][ T5041] RDX: 1ffffffffffffffb RSI: 000000000000000a RDI: 000000000000003f [ 90.802497][ T5041] RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 [ 90.810508][ T5041] R10: 0000000080000000 R11: 0000000000000001 R12: 000000000000000a [ 90.819099][ T5041] R13: ffff888020936000 R14: dffffc0000000000 R15: ffff8880242a4000 [ 90.827090][ T5041] FS: 0000555555f06380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 90.836036][ T5041] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.842640][ T5041] CR2: ffffffffffffffdb CR3: 0000000074f9b000 CR4: 00000000003506e0 [ 90.850630][ T5041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.858622][ T5041] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.866616][ T5041] Kernel panic - not syncing: Fatal exception [ 90.873044][ T5041] Kernel Offset: disabled [ 90.877378][ T5041] Rebooting in 86400 seconds..