------------[ cut here ]------------ kernel BUG at fs/ext4/inline.c:236! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1496 Comm: syz-executor.2 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:ext4_write_inline_data+0x3ab/0x3b0 fs/ext4/inline.c:236 Code: 07 fe c1 38 c1 0f 8c 2c ff ff ff 48 89 df 49 89 d7 e8 39 dc cc ff 4c 89 fa e9 19 ff ff ff e8 0c aa 87 ff 0f 0b e8 05 aa 87 ff <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 b8 a4 70 30 e0 55 RSP: 0018:ffffc90003c3f700 EFLAGS: 00010293 RAX: ffffffff81e9c2fb RBX: 0000000000000078 RCX: ffff88810d2cbcc0 RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000078 RBP: ffffc90003c3f750 R08: ffff88812addc257 R09: 1ffff110255bb84a R10: dffffc0000000000 R11: ffffed10255bb84b R12: ffff8881237e5730 R13: ffffc90003c3f7e0 R14: 0000000000000000 R15: 000000000000003c FS: 00007f2d809ff6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f21d53c4000 CR3: 0000000114b11000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_write_inline_data_end+0x337/0xa90 fs/ext4/inline.c:795 ext4_da_write_end+0x1ce/0x8c0 fs/ext4/inode.c:3093 generic_perform_write+0x3e5/0x740 mm/filemap.c:3914 ext4_buffered_write_iter+0x367/0x630 fs/ext4/file.c:285 ext4_file_write_iter+0x191/0x1500 fs/ext4/file.c:-1 call_write_iter include/linux/fs.h:2282 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x603/0xce0 fs/read_write.c:584 ksys_write+0x149/0x250 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:646 x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f2d7fc6e3b9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 d0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2d809ff0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2d7fdabf80 RCX: 00007f2d7fc6e3b9 RDX: 0000000000000078 RSI: 0000000020000600 RDI: 0000000000000005 RBP: 00007f2d7fccf4c2 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f2d7fdabf80 R15: 00007fffef2d35e8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_write_inline_data+0x3ab/0x3b0 fs/ext4/inline.c:236 Code: 07 fe c1 38 c1 0f 8c 2c ff ff ff 48 89 df 49 89 d7 e8 39 dc cc ff 4c 89 fa e9 19 ff ff ff e8 0c aa 87 ff 0f 0b e8 05 aa 87 ff <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 b8 a4 70 30 e0 55 RSP: 0018:ffffc90003c3f700 EFLAGS: 00010293 RAX: ffffffff81e9c2fb RBX: 0000000000000078 RCX: ffff88810d2cbcc0 RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000078 RBP: ffffc90003c3f750 R08: ffff88812addc257 R09: 1ffff110255bb84a R10: dffffc0000000000 R11: ffffed10255bb84b R12: ffff8881237e5730 R13: ffffc90003c3f7e0 R14: 0000000000000000 R15: 000000000000003c FS: 00007f2d809ff6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f21d53c4000 CR3: 0000000114b11000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400