------------[ cut here ]------------ kernel BUG at fs/ext4/inline.c:227! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 4192 Comm: syz-executor.0 Not tainted 6.1.0-rc8-syzkaller-00035-gf3e8416619ce #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:ext4_write_inline_data+0x344/0x3e0 fs/ext4/inline.c:227 Code: 5f e9 20 c2 61 ff e8 1b c2 61 ff 45 8d 64 2c c4 41 bd 3c 00 00 00 41 29 ed e9 e8 fe ff ff e8 03 c2 61 ff 0f 0b e8 fc c1 61 ff <0f> 0b e8 e5 9b ae ff e9 fe fd ff ff 4c 89 ff e8 d8 9b ae ff e9 99 RSP: 0018:ffffc900235d73c8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88801d3f6700 RCX: 0000000000000000 RDX: ffff888015980000 RSI: ffffffff821e5c04 RDI: 0000000000000006 RBP: 000000000000006c R08: 0000000000000006 R09: 0000000000000075 R10: 000000000000006c R11: 0000000000000000 R12: 0000000000000009 R13: 0000000000000075 R14: ffffc900235d7468 R15: ffff88801d3f6cc2 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7fbcb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007feccf2e0880 CR3: 0000000077193000 CR4: 0000000000152ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_write_inline_data_end+0x2a3/0x12f0 fs/ext4/inline.c:768 ext4_da_write_end+0x50d/0xa30 fs/ext4/inode.c:3071 generic_perform_write+0x316/0x570 mm/filemap.c:3764 ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285 ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700 call_write_iter include/linux/fs.h:2199 [inline] do_iter_readv_writev+0x20b/0x3b0 fs/read_write.c:735 do_iter_write+0x182/0x700 fs/read_write.c:861 vfs_iter_write+0x74/0xa0 fs/read_write.c:902 iter_file_splice_write+0x745/0xc90 fs/splice.c:686 do_splice_from fs/splice.c:764 [inline] direct_splice_actor+0x114/0x180 fs/splice.c:931 splice_direct_to_actor+0x335/0x8a0 fs/splice.c:886 do_splice_direct+0x1ab/0x280 fs/splice.c:974 do_sendfile+0xb19/0x1270 fs/read_write.c:1255 __do_compat_sys_sendfile fs/read_write.c:1344 [inline] __se_compat_sys_sendfile fs/read_write.c:1327 [inline] __ia32_compat_sys_sendfile+0x1e1/0x220 fs/read_write.c:1327 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fc1549 Code: 03 74 c0 01 10 05 03 74 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 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:00000000f7fbc5cc EFLAGS: 00000296 ORIG_RAX: 00000000000000bb RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000005 RDX: 0000000000000000 RSI: 0000000080000041 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+0x344/0x3e0 fs/ext4/inline.c:227 Code: 5f e9 20 c2 61 ff e8 1b c2 61 ff 45 8d 64 2c c4 41 bd 3c 00 00 00 41 29 ed e9 e8 fe ff ff e8 03 c2 61 ff 0f 0b e8 fc c1 61 ff <0f> 0b e8 e5 9b ae ff e9 fe fd ff ff 4c 89 ff e8 d8 9b ae ff e9 99 RSP: 0018:ffffc900235d73c8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88801d3f6700 RCX: 0000000000000000 RDX: ffff888015980000 RSI: ffffffff821e5c04 RDI: 0000000000000006 RBP: 000000000000006c R08: 0000000000000006 R09: 0000000000000075 R10: 000000000000006c R11: 0000000000000000 R12: 0000000000000009 R13: 0000000000000075 R14: ffffc900235d7468 R15: ffff88801d3f6cc2 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7fbcb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007feccf2e0880 CR3: 0000000077193000 CR4: 0000000000152ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi