Hello, syzbot found the following issue on: HEAD commit: 134231664868 Merge tag 'staging-6.3-rc2' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10ec9f7ac80000 kernel config: https://syzkaller.appspot.com/x/.config?x=8aef547e348b1ab8 dashboard link: https://syzkaller.appspot.com/bug?extid=f4582777a19ec422b517 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f4582777a19ec422b517@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ kernel BUG at fs/ext4/inline.c:225! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 24186 Comm: syz-executor.2 Not tainted 6.3.0-rc1-syzkaller-00274-g134231664868 #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:225 Code: 5f e9 b0 16 5b ff e8 ab 16 5b ff 45 8d 64 2c c4 41 bd 3c 00 00 00 41 29 ed e9 e8 fe ff ff e8 93 16 5b ff 0f 0b e8 8c 16 5b ff <0f> 0b e8 a5 5c ac ff e9 fe fd ff ff 4c 89 ff e8 98 5c ac ff e9 99 RSP: 0018:ffffc900035673c0 EFLAGS: 00010216 RAX: 000000000001158c RBX: ffff88801cbb02b0 RCX: ffffc900031ea000 RDX: 0000000000040000 RSI: ffffffff8228bf04 RDI: 0000000000000006 RBP: 0000000000000048 R08: 0000000000000006 R09: 0000000000000051 R10: 0000000000000048 R11: 0000000000000000 R12: 0000000000000009 R13: 0000000000000051 R14: ffffc90003567460 R15: ffff88801cbb0872 FS: 0000000000000000(0000) GS:ffff88802cb00000(0063) knlGS:00000000f7f53b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020030018 CR3: 00000000487e6000 CR4: 0000000000150ee0 Call Trace: <TASK> ext4_write_inline_data_end+0x2a3/0x12f0 fs/ext4/inline.c:766 ext4_da_write_end+0x396/0x9c0 fs/ext4/inode.c:3149 generic_perform_write+0x316/0x570 mm/filemap.c:3937 ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:289 ext4_file_write_iter+0xbe0/0x1740 fs/ext4/file.c:710 call_write_iter include/linux/fs.h:1851 [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+0x743/0xc80 fs/splice.c:778 do_splice_from fs/splice.c:856 [inline] direct_splice_actor+0x114/0x180 fs/splice.c:1022 splice_direct_to_actor+0x335/0x8a0 fs/splice.c:977 do_splice_direct+0x1ab/0x280 fs/splice.c:1065 do_sendfile+0xb19/0x12c0 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: 0023:0xf7f58579 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:00000000f7f535cc 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: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_write_inline_data+0x344/0x3e0 fs/ext4/inline.c:225 Code: 5f e9 b0 16 5b ff e8 ab 16 5b ff 45 8d 64 2c c4 41 bd 3c 00 00 00 41 29 ed e9 e8 fe ff ff e8 93 16 5b ff 0f 0b e8 8c 16 5b ff <0f> 0b e8 a5 5c ac ff e9 fe fd ff ff 4c 89 ff e8 98 5c ac ff e9 99 RSP: 0018:ffffc900035673c0 EFLAGS: 00010216 RAX: 000000000001158c RBX: ffff88801cbb02b0 RCX: ffffc900031ea000 RDX: 0000000000040000 RSI: ffffffff8228bf04 RDI: 0000000000000006 RBP: 0000000000000048 R08: 0000000000000006 R09: 0000000000000051 R10: 0000000000000048 R11: 0000000000000000 R12: 0000000000000009 R13: 0000000000000051 R14: ffffc90003567460 R15: ffff88801cbb0872 FS: 0000000000000000(0000) GS:ffff88802cb00000(0063) knlGS:00000000f7f53b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020030018 CR3: 00000000487e6000 CR4: 0000000000150ee0 ---------------- 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 retq 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 --- This report is generated by a bot. 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