ERROR: (device loop6): remounting filesystem as read-only ------------[ cut here ]------------ kernel BUG at fs/jfs/inode.c:175! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 8478 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:jfs_evict_inode+0x42b/0x430 fs/jfs/inode.c:175 Code: fe e9 e8 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fe ff ff 4c 89 f7 e8 80 8c d6 fe e9 16 fe ff ff e8 16 19 6d fe 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc9000610f948 EFLAGS: 00010293 RAX: ffffffff8358c02a RBX: ffff888066540440 RCX: ffff88802f9d1f00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffffff83589c90 R12: ffff888066540440 R13: dffffc0000000000 R14: ffff8880665400f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff888125c3e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fec33967e9c CR3: 0000000026bba000 CR4: 00000000003526f0 Call Trace: evict+0x624/0xb50 fs/inode.c:825 dispose_list fs/inode.c:867 [inline] evict_inodes+0x7e3/0x870 fs/inode.c:921 generic_shutdown_super+0xaa/0x2d0 fs/super.c:633 kill_block_super+0x44/0x90 fs/super.c:1671 deactivate_locked_super+0xbc/0x130 fs/super.c:477 cleanup_mnt+0x3d3/0x460 fs/namespace.c:1317 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x73a/0x2360 kernel/exit.c:1009 do_group_exit+0x22d/0x2f0 kernel/exit.c:1152 __do_sys_exit_group kernel/exit.c:1163 [inline] __se_sys_exit_group kernel/exit.c:1161 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1161 x64_sys_call+0x221a/0x2240 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f139f78e019 Code: Unable to access opcode bytes at 0x7f139f78dfef. RSP: 002b:00007ffccb7a1a48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f139f824481 RCX: 00007f139f78e019 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000002 R08: 0000000000000000 R09: 00007f139f82445c R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccb7a2d00 R13: 00007f139f82445c R14: 0000000000076e0e R15: 00007ffccb7a3dd0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:jfs_evict_inode+0x42b/0x430 fs/jfs/inode.c:175 Code: fe e9 e8 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fe ff ff 4c 89 f7 e8 80 8c d6 fe e9 16 fe ff ff e8 16 19 6d fe 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc9000610f948 EFLAGS: 00010293 RAX: ffffffff8358c02a RBX: ffff888066540440 RCX: ffff88802f9d1f00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffffff83589c90 R12: ffff888066540440 R13: dffffc0000000000 R14: ffff8880665400f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff888125c3e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fec33967e9c CR3: 0000000026bba000 CR4: 00000000003526f0