./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor755293012 <...> Warning: Permanently added '10.128.0.7' (ED25519) to the list of known hosts. execve("./syz-executor755293012", ["./syz-executor755293012"], 0x7ffda1609270 /* 10 vars */) = 0 brk(NULL) = 0x55557fdec000 brk(0x55557fdecd00) = 0x55557fdecd00 arch_prctl(ARCH_SET_FS, 0x55557fdec380) = 0 set_tid_address(0x55557fdec650) = 5238 set_robust_list(0x55557fdec660, 24) = 0 rseq(0x55557fdecca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor755293012", 4096) = 27 getrandom("\xb0\x12\x2d\x59\x55\xab\xc0\xee", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557fdecd00 brk(0x55557fe0dd00) = 0x55557fe0dd00 brk(0x55557fe0e000) = 0x55557fe0e000 mprotect(0x7ffaa74d3000, 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, 0executing program ) = 0x21000000 write(1, "executing program\n", 18) = 18 mkdir("./file0", 000) = 0 openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [ 62.051602][ T5238] ------------[ cut here ]------------ [ 62.057221][ T5238] kernel BUG at include/linux/highmem.h:269! [ 62.063812][ T5238] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 62.070786][ T5238] CPU: 0 UID: 0 PID: 5238 Comm: syz-executor755 Not tainted 6.12.0-rc3-next-20241016-syzkaller #0 [ 62.081469][ T5238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 62.091534][ T5238] RIP: 0010:fuse_dev_do_write+0x5d6d/0x5da0 [ 62.097465][ T5238] Code: c6 a0 11 41 8c e8 43 fc c9 fe 90 0f 0b e8 ab 55 7e fe 4c 89 ef 48 c7 c6 40 11 41 8c e8 2c fc c9 fe 90 0f 0b e8 94 55 7e fe 90 <0f> 0b e8 8c 55 7e fe eb 0c e8 85 55 7e fe eb c1 e8 7e 55 7e fe 4c [ 62.117085][ T5238] RSP: 0018:ffffc90003e67860 EFLAGS: 00010293 [ 62.123157][ T5238] RAX: ffffffff83168cbc RBX: 0000000000001001 RCX: ffff88802178bc00 [ 62.131122][ T5238] RDX: 0000000000000000 RSI: 0000000000001001 RDI: 0000000000001000 [ 62.139083][ T5238] RBP: ffffc90003e67bb0 R08: ffffffff8316685c R09: 1ffffd40003defd8 [ 62.147046][ T5238] R10: dffffc0000000000 R11: fffff940003defd9 R12: 0000000000001000 [ 62.155008][ T5238] R13: ffffea0001ef7ec0 R14: 1ffffd40003defd8 R15: 0000000000000001 [ 62.162971][ T5238] FS: 000055557fdec380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 62.171891][ T5238] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.178465][ T5238] CR2: 0000000020001f80 CR3: 000000007a4ca000 CR4: 00000000003526f0 [ 62.186430][ T5238] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.194386][ T5238] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.202355][ T5238] Call Trace: [ 62.205625][ T5238] [ 62.208547][ T5238] ? __die_body+0x5f/0xb0 [ 62.212866][ T5238] ? die+0x9e/0xc0 [ 62.216573][ T5238] ? do_trap+0x15a/0x3a0 [ 62.220811][ T5238] ? fuse_dev_do_write+0x5d6d/0x5da0 [ 62.226092][ T5238] ? do_error_trap+0x1dc/0x2c0 [ 62.230849][ T5238] ? fuse_dev_do_write+0x5d6d/0x5da0 [ 62.236127][ T5238] ? __pfx_do_error_trap+0x10/0x10 [ 62.241231][ T5238] ? report_bug+0x3e8/0x500 [ 62.245999][ T5238] ? handle_invalid_op+0x34/0x40 [ 62.250926][ T5238] ? fuse_dev_do_write+0x5d6d/0x5da0 [ 62.256201][ T5238] ? exc_invalid_op+0x38/0x50 [ 62.260868][ T5238] ? asm_exc_invalid_op+0x1a/0x20 [ 62.265882][ T5238] ? fuse_dev_do_write+0x390c/0x5da0 [ 62.271173][ T5238] ? fuse_dev_do_write+0x5d6c/0x5da0 [ 62.276455][ T5238] ? fuse_dev_do_write+0x5d6d/0x5da0 [ 62.281736][ T5238] ? __pfx_fuse_dev_do_write+0x10/0x10 [ 62.287187][ T5238] ? __pfx_lock_release+0x10/0x10 [ 62.292202][ T5238] ? aa_file_perm+0x137/0xf50 [ 62.296870][ T5238] ? aa_file_perm+0x3ef/0xf50 [ 62.301540][ T5238] ? __pfx_aa_file_perm+0x10/0x10 [ 62.306558][ T5238] fuse_dev_write+0x148/0x1d0 [ 62.311319][ T5238] ? __pfx_fuse_dev_write+0x10/0x10 [ 62.316509][ T5238] ? bpf_lsm_file_permission+0x9/0x10 [ 62.321870][ T5238] ? security_file_permission+0x74/0x280 [ 62.327499][ T5238] vfs_write+0xa6d/0xc90 [ 62.331733][ T5238] ? __pfx_fuse_dev_write+0x10/0x10 [ 62.336922][ T5238] ? __pfx_vfs_write+0x10/0x10 [ 62.341677][ T5238] ? _raw_spin_unlock_irq+0x2e/0x50 [ 62.346867][ T5238] ? ptrace_notify+0x279/0x380 [ 62.351623][ T5238] ksys_write+0x183/0x2b0 [ 62.355941][ T5238] ? __pfx_ksys_write+0x10/0x10 [ 62.360779][ T5238] ? exc_page_fault+0x590/0x8c0 [ 62.365624][ T5238] do_syscall_64+0xf3/0x230 [ 62.370112][ T5238] ? clear_bhb_loop+0x35/0x90 [ 62.374780][ T5238] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.380671][ T5238] RIP: 0033:0x7ffaa74606e9 [ 62.385078][ T5238] 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 [ 62.404669][ T5238] RSP: 002b:00007fff9501f418 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 62.413074][ T5238] RAX: ffffffffffffffda RBX: 00007ffaa74a9029 RCX: 00007ffaa74606e9 [ 62.421039][ T5238] RDX: 000000000000002a RSI: 0000000020001f80 RDI: 0000000000000003 [ 62.429000][ T5238] RBP: 00007ffaa74d3610 R08: 00007fff9501f5e8 R09: 00007fff9501f5e8 [ 62.436963][ T5238] R10: 0000000020000200 R11: 0000000000000246 R12: 0000000000000001 [ 62.444937][ T5238] R13: 00007fff9501f5d8 R14: 0000000000000001 R15: 0000000000000001 [ 62.452902][ T5238] [ 62.455907][ T5238] Modules linked in: [ 62.460089][ T5238] ---[ end trace 0000000000000000 ]--- [ 62.466162][ T5238] RIP: 0010:fuse_dev_do_write+0x5d6d/0x5da0 [ 62.472264][ T5238] Code: c6 a0 11 41 8c e8 43 fc c9 fe 90 0f 0b e8 ab 55 7e fe 4c 89 ef 48 c7 c6 40 11 41 8c e8 2c fc c9 fe 90 0f 0b e8 94 55 7e fe 90 <0f> 0b e8 8c 55 7e fe eb 0c e8 85 55 7e fe eb c1 e8 7e 55 7e fe 4c [ 62.492179][ T5238] RSP: 0018:ffffc90003e67860 EFLAGS: 00010293 [ 62.498341][ T5238] RAX: ffffffff83168cbc RBX: 0000000000001001 RCX: ffff88802178bc00 [ 62.506546][ T5238] RDX: 0000000000000000 RSI: 0000000000001001 RDI: 0000000000001000 [ 62.514602][ T5238] RBP: ffffc90003e67bb0 R08: ffffffff8316685c R09: 1ffffd40003defd8 [ 62.522702][ T5238] R10: dffffc0000000000 R11: fffff940003defd9 R12: 0000000000001000 [ 62.530789][ T5238] R13: ffffea0001ef7ec0 R14: 1ffffd40003defd8 R15: 0000000000000001 [ 62.538812][ T5238] FS: 000055557fdec380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 62.547839][ T5238] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.554511][ T5238] CR2: 000055874a56a790 CR3: 000000007a4ca000 CR4: 00000000003526f0 [ 62.562554][ T5238] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.570561][ T5238] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.578571][ T5238] Kernel panic - not syncing: Fatal exception [ 62.584777][ T5238] Kernel Offset: disabled [ 62.589103][ T5238] Rebooting in 86400 seconds..