------------[ cut here ]------------ kernel BUG at fs/reiserfs/journal.c:505! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 17257 Comm: syz-executor.3 Not tainted 6.6.0-rc6-syzkaller-00029-g213f891525c2 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:reiserfs_in_journal+0x238/0x720 fs/reiserfs/journal.c:505 Code: be c2 5d ff 48 8d 7d 08 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 16 04 00 00 48 3b 5d 08 75 86 e8 9d c2 5d ff e8 98 c2 5d ff <0f> 0b e8 91 c2 5d ff e8 8c c2 5d ff 48 8b 9b 28 06 00 00 48 b8 00 RSP: 0018:ffffc90004f4efb8 EFLAGS: 00010287 RAX: 00000000000057d4 RBX: ffff88804c164000 RCX: ffffc900065ea000 RDX: 0000000000040000 RSI: ffffffff822a07a8 RDI: ffffc90006171050 RBP: ffffc90006171048 R08: 0000000000000006 R09: 0000000000000213 R10: 0000000000000213 R11: 0000000000000000 R12: 0000000000000213 R13: 0000000000000213 R14: dffffc0000000000 R15: ffff888023923000 FS: 0000000000000000(0000) GS:ffff88802c700000(0063) knlGS:00000000f7fb9b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002ff29000 CR3: 000000002823b000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: is_block_in_journal fs/reiserfs/bitmap.c:125 [inline] scan_bitmap_block.constprop.0+0x339/0x1080 fs/reiserfs/bitmap.c:188 scan_bitmap fs/reiserfs/bitmap.c:408 [inline] allocate_without_wrapping_disk fs/reiserfs/bitmap.c:1161 [inline] blocknrs_and_prealloc_arrays_from_search_start fs/reiserfs/bitmap.c:1274 [inline] reiserfs_allocate_blocknrs+0x2c41/0x5770 fs/reiserfs/bitmap.c:1375 reiserfs_new_unf_blocknrs fs/reiserfs/reiserfs.h:3360 [inline] _allocate_block fs/reiserfs/inode.c:645 [inline] reiserfs_get_block+0xb13/0x47a0 fs/reiserfs/inode.c:756 reiserfs_get_blocks_direct_io+0xdc/0x2f0 fs/reiserfs/inode.c:522 get_more_blocks fs/direct-io.c:647 [inline] do_direct_IO fs/direct-io.c:935 [inline] __blockdev_direct_IO+0x2445/0x3cb0 fs/direct-io.c:1248 blockdev_direct_IO include/linux/fs.h:2969 [inline] reiserfs_direct_IO+0x10b/0x270 fs/reiserfs/inode.c:3242 generic_file_direct_write+0x132/0x360 mm/filemap.c:3894 __generic_file_write_iter+0x11d/0x240 mm/filemap.c:4050 generic_file_write_iter+0xe3/0x350 mm/filemap.c:4090 call_write_iter include/linux/fs.h:1956 [inline] do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735 do_iter_write+0x17f/0x830 fs/read_write.c:860 vfs_writev+0x221/0x700 fs/read_write.c:933 do_pwritev+0x1af/0x260 fs/read_write.c:1030 __do_compat_sys_pwritev2 fs/read_write.c:1176 [inline] __se_compat_sys_pwritev2 fs/read_write.c:1168 [inline] __ia32_compat_sys_pwritev2+0x121/0x1b0 fs/read_write.c:1168 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x61/0xe0 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: 0023:0xf7fbe579 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:00000000f7fb95ac EFLAGS: 00000292 ORIG_RAX: 000000000000017b RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020000240 RDX: 0000000000000001 RSI: 0000000000028000 RDI: 0000000000000000 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:reiserfs_in_journal+0x238/0x720 fs/reiserfs/journal.c:505 Code: be c2 5d ff 48 8d 7d 08 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 16 04 00 00 48 3b 5d 08 75 86 e8 9d c2 5d ff e8 98 c2 5d ff <0f> 0b e8 91 c2 5d ff e8 8c c2 5d ff 48 8b 9b 28 06 00 00 48 b8 00 RSP: 0018:ffffc90004f4efb8 EFLAGS: 00010287 RAX: 00000000000057d4 RBX: ffff88804c164000 RCX: ffffc900065ea000 RDX: 0000000000040000 RSI: ffffffff822a07a8 RDI: ffffc90006171050 RBP: ffffc90006171048 R08: 0000000000000006 R09: 0000000000000213 R10: 0000000000000213 R11: 0000000000000000 R12: 0000000000000213 R13: 0000000000000213 R14: dffffc0000000000 R15: ffff888023923000 FS: 0000000000000000(0000) GS:ffff88802c900000(0063) knlGS:00000000f7fb9b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000fffc4edc CR3: 000000002823b000 CR4: 0000000000350ee0 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