general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8167 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:write_special_inodes+0xa6/0x170 fs/jfs/jfs_logmgr.c:221 Code: 8b 7d 30 41 ff d4 48 8d 7b 28 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 ab 00 00 00 4c 8b 6b 28 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 88 00 00 00 49 8b 7d 30 41 ff d4 48 8d bb b0 00 RSP: 0018:ffff88809554fbb8 EFLAGS: 00010206 RAX: 0000000000000006 RBX: ffff8880a2f1c640 RCX: ffffffff817ce639 RDX: 0000000000000000 RSI: ffffffff817ce5d8 RDI: 0000000000000030 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff817ce7c0 IPVS: ftp: loaded support on port[0] = 21 R13: 0000000000000000 R14: ffff8880b311b200 R15: ffff88809554fdd0 FS: 0000555556082400(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff359cf478 CR3: 00000000b0d78000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lmLogSync+0x414/0x6e0 fs/jfs/jfs_logmgr.c:958 jfs_syncpt+0x78/0x90 fs/jfs/jfs_logmgr.c:1062 jfs_sync_fs+0x80/0xa0 fs/jfs/super.c:718 __sync_filesystem fs/sync.c:39 [inline] sync_filesystem+0x105/0x250 fs/sync.c:64 generic_shutdown_super+0x70/0x370 fs/super.c:442 kill_block_super+0x97/0xf0 fs/super.c:1185 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 deactivate_locked_super+0x94/0x160 fs/super.c:329 CPU: 1 PID: 10907 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 deactivate_super+0x174/0x1a0 fs/super.c:360 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe __should_failslab+0x115/0x180 mm/failslab.c:32 RIP: 0033:0x7f360d07eaa7 should_failslab+0x5/0x10 mm/slab_common.c:1590 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 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 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x3f/0x370 mm/slab.c:3557 RSP: 002b:00007fffeb016b78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 radix_tree_node_alloc.constprop.0+0x1e4/0x320 lib/radix-tree.c:398 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f360d07eaa7 radix_tree_extend+0x191/0x4b0 lib/radix-tree.c:637 RDX: 00007fffeb016c4a RSI: 000000000000000a RDI: 00007fffeb016c40 __radix_tree_create+0x448/0x540 lib/radix-tree.c:828 RBP: 00007fffeb016c40 R08: 00000000ffffffff R09: 00007fffeb016a10 __radix_tree_insert+0xbb/0x5f0 lib/radix-tree.c:994 R10: 0000555556083903 R11: 0000000000000246 R12: 00007f360d0d7b2e R13: 00007fffeb017d00 R14: 0000555556083810 R15: 00007fffeb017d40 Modules linked in: radix_tree_insert include/linux/radix-tree.h:300 [inline] shmem_add_to_page_cache+0x616/0xbb0 mm/shmem.c:629 shmem_getpage_gfp+0x2004/0x37f0 mm/shmem.c:1836 ---[ end trace ec2576a27438e154 ]--- RIP: 0010:write_special_inodes+0xa6/0x170 fs/jfs/jfs_logmgr.c:221 Code: 8b 7d 30 41 ff d4 48 8d 7b 28 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 ab 00 00 00 4c 8b 6b 28 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 88 00 00 00 49 8b 7d 30 41 ff d4 48 8d bb b0 00 shmem_getpage mm/shmem.c:132 [inline] shmem_write_begin+0xff/0x1e0 mm/shmem.c:2446 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170 RSP: 0018:ffff88809554fbb8 EFLAGS: 00010206 RAX: 0000000000000006 RBX: ffff8880a2f1c640 RCX: ffffffff817ce639 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x51b/0x770 fs/read_write.c:487 RDX: 0000000000000000 RSI: ffffffff817ce5d8 RDI: 0000000000000030 vfs_write+0x1f3/0x540 fs/read_write.c:549 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 ksys_pwrite64 fs/read_write.c:653 [inline] __do_sys_pwrite64 fs/read_write.c:663 [inline] __se_sys_pwrite64 fs/read_write.c:660 [inline] __x64_sys_pwrite64+0x1f7/0x250 fs/read_write.c:660 R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff817ce7c0 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f784686f797 R13: 0000000000000000 R14: ffff8880b311b200 R15: ffff88809554fdd0 Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b RSP: 002b:00007f7844e2ff00 EFLAGS: 00000293 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 0000000000000355 RCX: 00007f784686f797 FS: 0000555556082400(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 RDX: 00000000000000c0 RSI: 0000000020010000 RDI: 0000000000000004 RBP: 0000000000000004 R08: 0000000000000000 R09: 00007f7844e301d0 R10: 0000000000008000 R11: 0000000000000293 R12: 0000000000000004 R13: 00000000200002a8 R14: 0000000000000007 R15: 00007f7846907a20 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31729000 CR3: 00000000b0d78000 CR4: 00000000003406f0 JFS: discard option not supported on device DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 8b 7d 30 mov 0x30(%rbp),%edi 3: 41 ff d4 callq *%r12 6: 48 8d 7b 28 lea 0x28(%rbx),%rdi a: 48 89 f8 mov %rdi,%rax d: 48 c1 e8 03 shr $0x3,%rax 11: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) 15: 0f 85 ab 00 00 00 jne 0xc6 1b: 4c 8b 6b 28 mov 0x28(%rbx),%r13 1f: 49 8d 7d 30 lea 0x30(%r13),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) <-- trapping instruction 2e: 0f 85 88 00 00 00 jne 0xbc 34: 49 8b 7d 30 mov 0x30(%r13),%rdi 38: 41 ff d4 callq *%r12 3b: 48 rex.W 3c: 8d .byte 0x8d 3d: bb .byte 0xbb 3e: b0 00 mov $0x0,%al