./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2226285726 <...> Warning: Permanently added '10.128.1.70' (ED25519) to the list of known hosts. execve("./syz-executor2226285726", ["./syz-executor2226285726"], 0x7ffe472ec940 /* 10 vars */) = 0 brk(NULL) = 0x555594295000 brk(0x555594295d00) = 0x555594295d00 arch_prctl(ARCH_SET_FS, 0x555594295380) = 0 set_tid_address(0x555594295650) = 5067 set_robust_list(0x555594295660, 24) = 0 rseq(0x555594295ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2226285726", 4096) = 28 getrandom("\x02\xb5\x08\x49\x16\xf0\x42\xef", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555594295d00 brk(0x5555942b6d00) = 0x5555942b6d00 brk(0x5555942b7000) = 0x5555942b7000 mprotect(0x7f966a00d000, 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 mkdir("./file1", 000) = 0 mount(NULL, "./file1", "tmpfs", 0, "usrquota") = 0 chdir("./file1") = 0 openat(AT_FDCWD, "net_prio.prioidx", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [ 73.471958][ T5067] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI [ 73.484179][ T5067] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 73.492675][ T5067] CPU: 1 PID: 5067 Comm: syz-executor222 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 73.502733][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 73.512799][ T5067] RIP: 0010:shmem_get_next_id+0x92/0x5c0 [ 73.518491][ T5067] Code: 04 db 49 8d 9c c6 90 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 88 db 1a 00 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 6f db 1a 00 4c 8b 23 48 8d 5d 07 [ 73.538113][ T5067] RSP: 0018:ffffc90003fefbe0 EFLAGS: 00010246 [ 73.544187][ T5067] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888014d95a00 [ 73.552157][ T5067] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000004 [ 73.560131][ T5067] RBP: ffffc90003fefd00 R08: ffffffff81da1997 R09: ffffffff822b2bea [ 73.568122][ T5067] R10: 0000000000000003 R11: ffffffff81da1940 R12: 1ffff920007fdfa0 [ 73.576092][ T5067] R13: ffff88802343c000 R14: ffff88802343c000 R15: dffffc0000000000 [ 73.584059][ T5067] FS: 0000555594295380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 73.593679][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.600258][ T5067] CR2: 0000000020001000 CR3: 0000000022a6c000 CR4: 00000000003506f0 [ 73.608239][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.616205][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.624173][ T5067] Call Trace: [ 73.627449][ T5067] [ 73.630378][ T5067] ? __die_body+0x88/0xe0 [ 73.634708][ T5067] ? die_addr+0x108/0x140 [ 73.639122][ T5067] ? exc_general_protection+0x3dd/0x5d0 [ 73.644689][ T5067] ? asm_exc_general_protection+0x26/0x30 [ 73.650411][ T5067] ? __pfx_shmem_get_next_id+0x10/0x10 [ 73.655867][ T5067] ? from_kqid+0x2a/0x80 [ 73.660108][ T5067] ? shmem_get_next_id+0x57/0x5c0 [ 73.665139][ T5067] ? shmem_get_next_id+0x92/0x5c0 [ 73.670159][ T5067] ? __pfx_from_kgid+0x10/0x10 [ 73.674928][ T5067] dquot_get_next_dqblk+0x73/0x3a0 [ 73.680963][ T5067] quota_getnextquota+0x2c5/0x6c0 [ 73.686010][ T5067] ? __pfx_quota_getnextquota+0x10/0x10 [ 73.691577][ T5067] ? safesetid_security_capable+0xb2/0x1d0 [ 73.697392][ T5067] ? bpf_lsm_capable+0x9/0x10 [ 73.702093][ T5067] ? security_capable+0x90/0xb0 [ 73.706990][ T5067] ? bpf_lsm_quotactl+0x9/0x10 [ 73.711788][ T5067] ? security_quotactl+0x90/0xb0 [ 73.716806][ T5067] ? do_quotactl+0x478/0x870 [ 73.721429][ T5067] __se_sys_quotactl_fd+0x2a1/0x440 [ 73.726639][ T5067] do_syscall_64+0xfb/0x240 [ 73.731149][ T5067] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 73.737048][ T5067] RIP: 0033:0x7f9669f9a329 [ 73.741491][ T5067] 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 [ 73.761115][ T5067] RSP: 002b:00007fff5629b098 EFLAGS: 00000246 ORIG_RAX: 00000000000001bb [ 73.769527][ T5067] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f9669f9a329 [ 73.777493][ T5067] RDX: 0000000000000000 RSI: ffffffff80000901 RDI: 0000000000000003 [ 73.785548][ T5067] RBP: 00007f966a00d610 R08: 0000000000000000 R09: 00007fff5629b268 [ 73.793522][ T5067] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 73.801491][ T5067] R13: 00007fff5629b258 R14: 0000000000000001 R15: 0000000000000001 [ 73.809464][ T5067] [ 73.812478][ T5067] Modules linked in: [ 73.819664][ T5067] ---[ end trace 0000000000000000 ]--- [ 73.825208][ T5067] RIP: 0010:shmem_get_next_id+0x92/0x5c0 [ 73.830856][ T5067] Code: 04 db 49 8d 9c c6 90 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 88 db 1a 00 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 6f db 1a 00 4c 8b 23 48 8d 5d 07 [ 73.850535][ T5067] RSP: 0018:ffffc90003fefbe0 EFLAGS: 00010246 [ 73.856758][ T5067] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888014d95a00 [ 73.864791][ T5067] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000004 [ 73.872802][ T5067] RBP: ffffc90003fefd00 R08: ffffffff81da1997 R09: ffffffff822b2bea [ 73.880774][ T5067] R10: 0000000000000003 R11: ffffffff81da1940 R12: 1ffff920007fdfa0 [ 73.888812][ T5067] R13: ffff88802343c000 R14: ffff88802343c000 R15: dffffc0000000000 [ 73.896823][ T5067] FS: 0000555594295380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 73.905820][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.912588][ T5067] CR2: 000000000064392c CR3: 0000000022a6c000 CR4: 00000000003506f0 [ 73.920563][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.928615][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.936653][ T5067] Kernel panic - not syncing: Fatal exception [ 73.942972][ T5067] Kernel Offset: disabled [ 73.947297][ T5067] Rebooting in 86400 seconds..