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| ID | Workflow | Result | Correct | Bug | Created | Started | Finished | Revision | Error |
|---|---|---|---|---|---|---|---|---|---|
| 99139c64-70b0-4b6d-8d84-8f7c61e62a30 | assessment-security | DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ✅ NetworkTrigger: ❌ PeripheralTrigger: ✅ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌ | ❓ | UBSAN: shift-out-of-bounds in dbJoin (2) | 2026/05/23 11:27 | 2026/05/23 11:27 | 2026/05/23 12:11 | c69befb30ac10e158cc9d1557b508ee3f0eca1de |
| Title | Replies (including bot) | Last reply |
|---|---|---|
| [syzbot] [jfs?] UBSAN: shift-out-of-bounds in dbJoin (2) | 1 (6) | 2026/04/17 19:19 |
| [PATCH] jfs: Add a sanity check for budmin | 1 (1) | 2025/12/07 03:52 |
| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | UBSAN: shift-out-of-bounds in dbJoin jfs | -1 | C | error | 3 | 943d | 1328d | 25/29 | fixed on 2024/01/30 15:47 |
------------[ cut here ]------------
UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2795:11
shift exponent 132 is too large for 32-bit type 'int'
CPU: 0 UID: 0 PID: 123 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
<TASK>
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
ubsan_epilogue+0xa/0x40 lib/ubsan.c:233
__ubsan_handle_shift_out_of_bounds+0x386/0x410 lib/ubsan.c:494
dbJoin+0x2dc/0x300 fs/jfs/jfs_dmap.c:2795
dbFreeBits+0x4e1/0xdb0 fs/jfs/jfs_dmap.c:2340
dbFreeDmap fs/jfs/jfs_dmap.c:2089 [inline]
dbFree+0x336/0x650 fs/jfs/jfs_dmap.c:398
txFreeMap+0x7ff/0xde0 fs/jfs/jfs_txnmgr.c:2535
txUpdateMap+0x308/0x9c0 fs/jfs/jfs_txnmgr.c:-1
txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline]
jfs_lazycommit+0x3f1/0xa10 fs/jfs/jfs_txnmgr.c:2734
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x52d/0xa60 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
---[ end trace ]---
Kernel panic - not syncing: UBSAN: panic_on_warn set ...
CPU: 0 UID: 0 PID: 123 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
<TASK>
dump_stack_lvl+0x99/0x250 lib/dump_stack.c:120
vpanic+0x237/0x6d0 kernel/panic.c:489
panic+0xb9/0xc0 kernel/panic.c:626
check_panic_on_warn+0x89/0xb0 kernel/panic.c:376
__ubsan_handle_shift_out_of_bounds+0x386/0x410 lib/ubsan.c:494
dbJoin+0x2dc/0x300 fs/jfs/jfs_dmap.c:2795
dbFreeBits+0x4e1/0xdb0 fs/jfs/jfs_dmap.c:2340
dbFreeDmap fs/jfs/jfs_dmap.c:2089 [inline]
dbFree+0x336/0x650 fs/jfs/jfs_dmap.c:398
txFreeMap+0x7ff/0xde0 fs/jfs/jfs_txnmgr.c:2535
txUpdateMap+0x308/0x9c0 fs/jfs/jfs_txnmgr.c:-1
txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline]
jfs_lazycommit+0x3f1/0xa10 fs/jfs/jfs_txnmgr.c:2734
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x52d/0xa60 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
Kernel Offset: disabled
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/12/03 00:28 | upstream | 4a26e7032d7d | d6526ea3 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci2-upstream-fs | UBSAN: shift-out-of-bounds in dbJoin | |
| 2025/12/02 23:17 | upstream | 4a26e7032d7d | d6526ea3 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci2-upstream-fs | UBSAN: shift-out-of-bounds in dbJoin | |
| 2025/12/02 20:02 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 05c93f3395ed | d6526ea3 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci-upstream-gce-arm64 | UBSAN: shift-out-of-bounds in dbJoin | |
| 2025/12/02 18:07 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 05c93f3395ed | d6526ea3 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci-upstream-gce-arm64 | UBSAN: shift-out-of-bounds in dbJoin | |
| 2025/12/02 17:18 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 05c93f3395ed | d6526ea3 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci-upstream-gce-arm64 | UBSAN: shift-out-of-bounds in dbJoin | |
| 2025/12/02 16:27 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 05c93f3395ed | d6526ea3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | UBSAN: shift-out-of-bounds in dbJoin |