------------[ cut here ]------------ kernel BUG at fs/buffer.c:2074! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 2248 Comm: syz-executor.2 Not tainted 5.15.148-syzkaller-1068931-g3802b45594e1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:__block_commit_write+0x270/0x280 fs/buffer.c:2074 Code: ff 48 8b 5d b8 48 89 df be 08 00 00 00 e8 48 c7 e7 ff f0 80 0b 04 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 80 dc a5 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 48 89 e5 41 57 RSP: 0018:ffffc90000b97748 EFLAGS: 00010293 RAX: ffffffff81ca3120 RBX: 0000000000000000 RCX: ffff88811629bb40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000b97798 R08: ffffffff81ca2f13 R09: fffff9400095a451 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 000000000000000c R14: 4000000000000017 R15: ffffea0004ad2280 FS: 00007f69fe4836c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000011be64000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: block_write_end+0x47/0x90 fs/buffer.c:2164 ext4_write_end+0x1f6/0xa00 fs/ext4/inode.c:1313 ext4_da_write_end+0x88/0xab0 fs/ext4/inode.c:3071 generic_perform_write+0x3b4/0x5a0 mm/filemap.c:3854 ext4_buffered_write_iter+0x48a/0x610 fs/ext4/file.c:270 ext4_file_write_iter+0x443/0x1c80 call_write_iter include/linux/fs.h:2202 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0xd5d/0x1110 fs/read_write.c:594 ksys_write+0x199/0x2c0 fs/read_write.c:647 __do_sys_write fs/read_write.c:659 [inline] __se_sys_write fs/read_write.c:656 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:656 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f69fe921da9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f69fe4830c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f69fea51050 RCX: 00007f69fe921da9 RDX: 000000000000000c RSI: 0000000020000300 RDI: 0000000000000004 RBP: 00007f69fe96e47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f69fea51050 R15: 00007ffeb434a968 Modules linked in: ---[ end trace 478647250527a82a ]--- RIP: 0010:__block_commit_write+0x270/0x280 fs/buffer.c:2074 Code: ff 48 8b 5d b8 48 89 df be 08 00 00 00 e8 48 c7 e7 ff f0 80 0b 04 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 80 dc a5 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 48 89 e5 41 57 RSP: 0018:ffffc90000b97748 EFLAGS: 00010293 RAX: ffffffff81ca3120 RBX: 0000000000000000 RCX: ffff88811629bb40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000b97798 R08: ffffffff81ca2f13 R09: fffff9400095a451 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 000000000000000c R14: 4000000000000017 R15: ffffea0004ad2280 FS: 00007f69fe4836c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4bc1e20000 CR3: 000000011be64000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400