Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffb77e48058 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007ffb77145fa0 RCX: 00007ffb76f80809 RDX: 0000000020000700 RSI: 0000000000000001 RDI: 00007ffb77dfe000 RBP: 00007ffb77e480a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 00007ffb77145fa0 R15: 00007ffe126ae9d8 ------------[ cut here ]------------ kernel BUG at lib/iov_iter.c:626! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 UID: 0 PID: 7872 Comm: syz.0.424 Not tainted 6.12.0-syzkaller-10553-gb86545e02e8c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:iov_iter_revert lib/iov_iter.c:626 [inline] RIP: 0010:iov_iter_revert+0x533/0x5a0 lib/iov_iter.c:611 Code: 89 e6 48 c7 c7 80 c4 d0 8e e8 89 e2 31 00 e9 b1 fd ff ff e8 1f 4f 5e fd eb 95 e8 48 4f 5e fd e9 46 fb ff ff e8 6e 67 fb fc 90 <0f> 0b 48 8b 3c 24 e8 32 4f 5e fd e9 97 fb ff ff 48 8b 7c 24 08 e8 RSP: 0018:ffffc9000b9c7648 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84935c40 RDX: ffff88802ba3c880 RSI: ffffffff84936052 RDI: 0000000000000001 RBP: ffffc9000b9c7b20 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888030fab800 FS: 00007ffb77e486c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffb77dfcfb8 CR3: 000000002854a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_direct_io+0xf0e/0x2580 fs/fuse/file.c:1667 fuse_direct_IO+0x620/0xf20 fs/fuse/file.c:3121 generic_file_direct_write+0x197/0x410 mm/filemap.c:3978 fuse_cache_write_iter fs/fuse/file.c:1474 [inline] fuse_file_write_iter+0x6d5/0x8c0 fs/fuse/file.c:1791 aio_write+0x3b2/0x8c0 fs/aio.c:1633 __io_submit_one fs/aio.c:2005 [inline] io_submit_one+0x1248/0x1da0 fs/aio.c:2052 __do_sys_io_submit fs/aio.c:2111 [inline] __se_sys_io_submit fs/aio.c:2081 [inline] __x64_sys_io_submit+0x1b2/0x340 fs/aio.c:2081 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ffb76f80809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffb77e48058 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007ffb77145fa0 RCX: 00007ffb76f80809 RDX: 0000000020000700 RSI: 0000000000000001 RDI: 00007ffb77dfe000 RBP: 00007ffb77e480a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 00007ffb77145fa0 R15: 00007ffe126ae9d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:iov_iter_revert lib/iov_iter.c:626 [inline] RIP: 0010:iov_iter_revert+0x533/0x5a0 lib/iov_iter.c:611 Code: 89 e6 48 c7 c7 80 c4 d0 8e e8 89 e2 31 00 e9 b1 fd ff ff e8 1f 4f 5e fd eb 95 e8 48 4f 5e fd e9 46 fb ff ff e8 6e 67 fb fc 90 <0f> 0b 48 8b 3c 24 e8 32 4f 5e fd e9 97 fb ff ff 48 8b 7c 24 08 e8 RSP: 0018:ffffc9000b9c7648 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84935c40 RDX: ffff88802ba3c880 RSI: ffffffff84936052 RDI: 0000000000000001 RBP: ffffc9000b9c7b20 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888030fab800 FS: 00007ffb77e486c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffb77dfcfb8 CR3: 000000002854a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 c: 0f 1f 40 00 nopl 0x0(%rax) 10: 48 89 f8 mov %rdi,%rax 13: 48 89 f7 mov %rsi,%rdi 16: 48 89 d6 mov %rdx,%rsi 19: 48 89 ca mov %rcx,%rdx 1c: 4d 89 c2 mov %r8,%r10 1f: 4d 89 c8 mov %r9,%r8 22: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 27: 0f 05 syscall * 29: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 2f: 73 01 jae 0x32 31: c3 ret 32: 48 c7 c1 a8 ff ff ff mov $0xffffffffffffffa8,%rcx 39: f7 d8 neg %eax 3b: 64 89 01 mov %eax,%fs:(%rcx) 3e: 48 rex.W