------------[ cut here ]------------ kernel BUG at fs/ext4/inline.c:235! invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 7966 Comm: syz-executor.3 Not tainted 6.9.0-rc2-syzkaller-00193-gc88b9b4cde17 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:ext4_write_inline_data+0x307/0x390 fs/ext4/inline.c:235 Code: 64 ff ff ff e8 4a 97 49 ff b8 3c 00 00 00 48 29 e8 4c 63 e8 41 29 c4 e9 1d ff ff ff e8 32 97 49 ff 90 0f 0b e8 2a 97 49 ff 90 <0f> 0b e8 82 1a a6 ff e9 3a fe ff ff e8 78 1a a6 ff e9 d8 fd ff ff RSP: 0018:ffffc900067cf8f8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880648eaab0 RCX: ffffffff82447d70 RDX: ffff88801b9fc880 RSI: ffffffff82447f16 RDI: 0000000000000006 RBP: 0000000000000048 R08: 0000000000000006 R09: 0000000000000050 R10: 0000000000000048 R11: 0000000000000004 R12: 0000000000000008 R13: 0000000000000050 R14: ffffc900067cf990 R15: 0000000000000048 FS: 0000000000000000(0000) GS:ffff88802c300000(0063) knlGS:00000000f5e93b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020001030 CR3: 0000000045c00000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_write_inline_data_end+0x278/0xc50 fs/ext4/inline.c:773 ext4_da_write_end+0x641/0xd50 fs/ext4/inode.c:3022 generic_perform_write+0x337/0x620 mm/filemap.c:3985 ext4_buffered_write_iter+0x11f/0x3d0 fs/ext4/file.c:299 ext4_file_write_iter+0x874/0x1a40 fs/ext4/file.c:698 call_write_iter include/linux/fs.h:2108 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6db/0x1100 fs/read_write.c:590 ksys_write+0x12f/0x260 fs/read_write.c:643 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x7a/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x7f/0x89 RIP: 0023:0xf72e3579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f5e935ac EFLAGS: 00000292 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000480 RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_write_inline_data+0x307/0x390 fs/ext4/inline.c:235 Code: 64 ff ff ff e8 4a 97 49 ff b8 3c 00 00 00 48 29 e8 4c 63 e8 41 29 c4 e9 1d ff ff ff e8 32 97 49 ff 90 0f 0b e8 2a 97 49 ff 90 <0f> 0b e8 82 1a a6 ff e9 3a fe ff ff e8 78 1a a6 ff e9 d8 fd ff ff RSP: 0018:ffffc900067cf8f8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880648eaab0 RCX: ffffffff82447d70 RDX: ffff88801b9fc880 RSI: ffffffff82447f16 RDI: 0000000000000006 RBP: 0000000000000048 R08: 0000000000000006 R09: 0000000000000050 R10: 0000000000000048 R11: 0000000000000004 R12: 0000000000000008 R13: 0000000000000050 R14: ffffc900067cf990 R15: 0000000000000048 FS: 0000000000000000(0000) GS:ffff88802c300000(0063) knlGS:00000000f5e93b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020001030 CR3: 0000000045c00000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi