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KASAN: vmalloc-out-of-bounds Read in cleanup_bitmap_list

Status: auto-obsoleted due to no activity on 2023/10/16 09:07
Reported-by: syzbot+f2dfe4636342e2cbcf3b@syzkaller.appspotmail.com
First crash: 578d, last: 502d
▶ ▼ Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 KASAN: vmalloc-out-of-bounds Read in cleanup_bitmap_list origin:upstream C error 3 78d 548d 0/3 upstream: reported C repro on 2023/05/22 16:15
upstream KASAN: vmalloc-out-of-bounds Read in cleanup_bitmap_list reiserfs C error done 100 323d 754d 25/28 fixed on 2024/02/16 19:40
linux-5.15 KASAN: vmalloc-out-of-bounds Read in cleanup_bitmap_list (2) origin:upstream C 4 31d 297d 0/3 upstream: reported C repro on 2024/01/28 16:33
linux-4.14 BUG: unable to handle kernel paging request in cleanup_bitmap_list C 1 640d 753d 0/1 upstream: reported C repro on 2022/10/30 13:58
linux-4.19 BUG: unable to handle kernel paging request in cleanup_bitmap_list reiserfs C error 2 672d 755d 0/1 upstream: reported C repro on 2022/10/28 06:50

Sample crash report:
REISERFS warning (device loop0):  reiserfs_fill_super: corrupt root inode, run fsck
==================================================================
BUG: KASAN: vmalloc-out-of-bounds in cleanup_bitmap_list+0x175/0x500 fs/reiserfs/journal.c:231
Read of size 8 at addr ffffc90001258008 by task syz-executor.0/21363

CPU: 0 PID: 21363 Comm: syz-executor.0 Not tainted 5.15.120-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description+0x63/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
 cleanup_bitmap_list+0x175/0x500 fs/reiserfs/journal.c:231
 free_list_bitmaps+0x48/0x1a0 fs/reiserfs/journal.c:249
 free_journal_ram+0xf8/0x3f0 fs/reiserfs/journal.c:1884
 do_journal_release fs/reiserfs/journal.c:1957 [inline]
 journal_release_error+0x76/0x90 fs/reiserfs/journal.c:1975
 reiserfs_fill_super+0x13e9/0x2690 fs/reiserfs/super.c:2227
 mount_bdev+0x2c9/0x3f0 fs/super.c:1378
 legacy_get_tree+0xeb/0x180 fs/fs_context.c:610
 vfs_get_tree+0x88/0x270 fs/super.c:1508
 do_new_mount+0x28b/0xae0 fs/namespace.c:2994
 do_mount fs/namespace.c:3337 [inline]
 __do_sys_mount fs/namespace.c:3545 [inline]
 __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522
 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: 0033:0x7f97f244c8ba
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f97f09bcf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000000010f6 RCX: 00007f97f244c8ba
RDX: 0000000020001100 RSI: 0000000020000040 RDI: 00007f97f09bcfe0
RBP: 00007f97f09bd020 R08: 00007f97f09bd020 R09: 0000000000000080
R10: 0000000000000080 R11: 0000000000000202 R12: 0000000020001100
R13: 0000000020000040 R14: 00007f97f09bcfe0 R15: 00000000200000c0
 </TASK>


Memory state around the buggy address:
 ffffc90001257f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc90001257f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc90001258000: 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
                      ^
 ffffc90001258080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc90001258100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
==================================================================

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/07/08 09:06 linux-5.15.y d54cfc420586 668cb1fa .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: vmalloc-out-of-bounds Read in cleanup_bitmap_list
2023/04/27 04:03 linux-5.15.y f48aeeaaa64c 19a3dabe .config console log report info ci2-linux-5-15-kasan KASAN: vmalloc-out-of-bounds Read in cleanup_bitmap_list
2023/04/23 04:32 linux-5.15.y 3299fb36854f 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: vmalloc-out-of-bounds Read in cleanup_bitmap_list
* Struck through repros no longer work on HEAD.