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UBSAN: array-index-out-of-bounds in diAlloc

Status: upstream: reported C repro on 2022/09/27 11:45
Subsystems: jfs
[Documentation on labels]
Reported-by: syzbot+79d792676d8ac050949f@syzkaller.appspotmail.com
Fix commit: 05d9ea1ceb62 jfs: fix array-index-out-of-bounds in diAlloc
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-arm64 ci-upstream-gce-leak ci-upstream-kasan-badwrites-root ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-riscv64]
First crash: 429d, last: 19d
Cause bisection: failed (error log, bisect log)
  
Fix bisection the fix commit could be any of (bisect log):
  1ea66d71b176 jfs: remove unused declarations for jfs
  dee874452409 jfs: remove redundant assignments to ipaimap and ipaimap2
  b0a35efa0ebc fs/jfs/jfs_xattr.h: Fix spelling typo in comment
  ebe060369f8d jfs: Fix fortify moan in symlink
  25e70c6162f2 fs: jfs: fix shift-out-of-bounds in dbDiscardAG
  4ef3405e82d2 MAINTAINERS: git://github -> https://github.com for kleikamp
  73c6da327ff1 fs/jfs: replace ternary operator with min_t()
  d0e482c45c50 jfs: Fix a typo in function jfs_umount
  898f70669568 fs: jfs: fix shift-out-of-bounds in dbAllocAG
  a60dca73a1a8 jfs: makes diUnmount/diMount in jfs_mount_rw atomic
  56c003e4db4a Merge tag 'jfs-6.2' of https://github.com/kleikamp/linux-shaggy
   
▶ ▼ Discussions (10)
Title Replies (including bot) Last reply
[PATCH AUTOSEL 4.14 6/9] jfs: fix array-index-out-of-bounds in diAlloc 1 (1) 2023/11/07 15:54
[PATCH AUTOSEL 4.19 06/11] jfs: fix array-index-out-of-bounds in diAlloc 1 (1) 2023/11/07 15:54
[PATCH AUTOSEL 5.4 06/12] jfs: fix array-index-out-of-bounds in diAlloc 1 (1) 2023/11/07 15:53
[PATCH AUTOSEL 5.10 07/16] jfs: fix array-index-out-of-bounds in diAlloc 1 (1) 2023/11/07 15:52
[PATCH AUTOSEL 5.15 09/22] jfs: fix array-index-out-of-bounds in diAlloc 1 (1) 2023/11/07 15:51
[PATCH AUTOSEL 6.1 12/30] jfs: fix array-index-out-of-bounds in diAlloc 1 (1) 2023/11/07 15:49
[PATCH AUTOSEL 6.5 13/34] jfs: fix array-index-out-of-bounds in diAlloc 1 (1) 2023/11/07 15:47
[PATCH AUTOSEL 6.6 15/36] jfs: fix array-index-out-of-bounds in diAlloc 1 (1) 2023/11/07 15:45
[PATCH v2] jfs: fix array-index-out-of-bounds in diAlloc 2 (2) 2023/10/04 14:23
[syzbot] UBSAN: array-index-out-of-bounds in diAlloc 0 (1) 2022/09/27 11:45
▶ ▼ Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 UBSAN: array-index-out-of-bounds in diAlloc 3 2d14h 2d15h 0/3 upstream: reported on 2023/11/28 03:56
linux-6.1 UBSAN: array-index-out-of-bounds in diAlloc 4 2d16h 20d 0/3 upstream: reported on 2023/11/10 08:05
linux-4.19 KASAN: use-after-free Read in diAlloc C error 3 379d 423d 0/1 upstream: reported C repro on 2022/10/02 23:41
linux-4.14 KASAN: use-after-free Read in diAlloc C 2 277d 423d 0/1 upstream: reported C repro on 2022/10/03 09:45
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2023/10/04 06:42 29m ghandatmanas@gmail.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master OK log
2023/09/25 17:36 27m ghandatmanas@gmail.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master OK log
2023/09/25 17:26 26m ghandatmanas@gmail.com https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master report log
2023/09/16 02:45 14m retest repro upstream report log
2023/09/01 03:13 9m retest repro upstream report log
2023/06/23 00:06 31m retest repro upstream OK log
2023/06/23 00:06 26m retest repro upstream report log

Sample crash report:
loop0: detected capacity change from 0 to 65535
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:1359:54
index -1 is out of range for type 'atomic_t [128]'
CPU: 0 PID: 3604 Comm: syz-executor520 Not tainted 6.0.0-rc7-syzkaller-00034-ga1375562c0a8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 ubsan_epilogue+0xb/0x50 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds.cold+0x62/0x6c lib/ubsan.c:283
 diAlloc+0x1493/0x1730 fs/jfs/jfs_imap.c:1359
 ialloc+0x89/0xaa0 fs/jfs/jfs_inode.c:56
 jfs_create+0x1ea/0xac0 fs/jfs/namei.c:92
 lookup_open.isra.0+0xf05/0x12a0 fs/namei.c:3413
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x996/0x28f0 fs/namei.c:3688
 do_filp_open+0x1b6/0x400 fs/namei.c:3718
 do_sys_openat2+0x16d/0x4c0 fs/open.c:1313
 do_sys_open fs/open.c:1329 [inline]
 __do_sys_open fs/open.c:1337 [inline]
 __se_sys_open fs/open.c:1333 [inline]
 __x64_sys_open+0x119/0x1c0 fs/open.c:1333
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fee2611efc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffca55df088 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fee2611efc9
RDX: 0000000000000000 RSI: 00000000000000f0 RDI: 0000000020000140
RBP: 00007fee260de790 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffca55def50 R11: 0000000000000246 R12: 00000000f8008000
R13: 0000000000000000 R14: 00083878000000f8 R15: 0000000000000000
 </TASK>
================================================================================

Crashes (37):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/09/27 21:09 upstream a1375562c0a8 87840e00 .config strace log report syz C [disk image] [vmlinux] ci-upstream-kasan-gce-root UBSAN: array-index-out-of-bounds in diAlloc
2022/09/26 20:59 upstream f76349cf4145 d59ba983 .config strace log report syz C ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/09 09:26 upstream a6afa4199d3d aea5da89 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-kasan-gce-root UBSAN: array-index-out-of-bounds in diAlloc
2022/10/03 14:00 upstream a962b54e162c feb56351 .config strace log report syz C [disk image] [vmlinux] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2023/02/09 18:01 upstream 0983f6bf2bfc 07980f9d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2023/01/12 17:43 upstream e8f60cd7db24 96166539 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/12/23 14:23 upstream 8395ae05cb5a 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/19 06:25 upstream ab290eaddc4c 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/19 05:12 upstream ab290eaddc4c 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/18 12:17 upstream 84368d882b96 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/18 00:01 upstream 81ac25651a62 4ba8ab94 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/16 07:38 upstream 81e7cfa3a9eb 3a127a31 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/16 04:12 upstream 81e7cfa3a9eb 3a127a31 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/15 04:25 upstream e01d50cbd6ee 97de9cfc .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/13 08:45 upstream fef7fd48922d f42ee5d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/12 22:06 upstream 8f2975c2bb4c f42ee5d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/12 13:03 upstream 8f2975c2bb4c f42ee5d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/12 05:27 upstream eb037f16f7e8 f42ee5d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/10 11:45 upstream f67dd6ce0723 b2488a87 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/10 04:58 upstream f67dd6ce0723 b2488a87 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/08 07:38 upstream 59f2f4b8a757 6feb842b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/11/01 18:05 upstream b229b6ca5abb a1d8560a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/27 11:48 upstream 4dc12f37a8e9 86777b7f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/27 01:27 upstream 4dc12f37a8e9 86777b7f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/24 20:01 upstream 247f34f7b803 faae2fda .config console log report info [disk image] [vmlinux] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/22 00:18 upstream 6d36c728bc2e 63e790dd .config console log report info [disk image] [vmlinux] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/21 12:34 upstream 6d36c728bc2e 63e790dd .config console log report info [disk image] [vmlinux] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/18 16:46 upstream 493ffd6605b2 b31320fc .config console log report info [disk image] [vmlinux] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/17 09:49 upstream 493ffd6605b2 67cb024c .config console log report info [disk image] [vmlinux] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/16 02:35 upstream 493ffd6605b2 67cb024c .config console log report info [disk image] [vmlinux] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/12 19:42 upstream 493ffd6605b2 16a9c9e0 .config console log report info [disk image] [vmlinux] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/09 13:27 upstream a6afa4199d3d aea5da89 .config console log report info [disk image] [vmlinux] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2022/10/06 02:39 upstream 2bca25eaeba6 2c6543ad .config console log report info [disk image] [vmlinux] ci2-upstream-fs UBSAN: array-index-out-of-bounds in diAlloc
2023/11/10 22:25 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8de1e7afcc1c 45e9b83e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 UBSAN: array-index-out-of-bounds in diAlloc
2023/11/10 10:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8de1e7afcc1c 45e9b83e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 UBSAN: array-index-out-of-bounds in diAlloc
2022/10/20 23:27 linux-next acee3e83b493 a0fd4dab .config console log report info [disk image] [vmlinux] ci-upstream-linux-next-kasan-gce-root UBSAN: array-index-out-of-bounds in diAlloc
2023/04/13 23:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7920df21c1b7 3cfcaa1b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 UBSAN: array-index-out-of-bounds in diAlloc
* Struck through repros no longer work on HEAD.