# CVE-2025-68818

## Summary

- **CVE ID:** CVE-2025-68818
- **Severity:** HIGH
- **CVSS Score:** 8.8 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** N/A
- **Published:** Jan 13, 2026
- **Last Modified:** Sep 8, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: Revert "scsi: qla2xxx: Perform lockless command completion in abort path"

This reverts commit 0367076b0817d5c75dfb83001ce7ce5c64d803a9.

The commit being reverted added code to __qla2x00_abort_all_cmds() to
call sp->done() without holding a spinlock.  But unlike the older code
below it, this new code failed to check sp->cmd_type and just assumed
TYPE_SRB, which results in a jump to an invalid pointer in target-mode
with TYPE_TGT_CMD:

qla2xxx [0000:65:00.0]-d034:8: qla24xx_do_nack_work create sess success
  0000000009f7a79b
qla2xxx [0000:65:00.0]-5003:8: ISP System Error - mbx1=1ff5h mbx2=10h
  mbx3=0h mbx4=0h mbx5=191h mbx6=0h mbx7=0h.
qla2xxx [0000:65:00.0]-d01e:8: -> fwdump no buffer
qla2xxx [0000:65:00.0]-f03a:8: qla_target(0): System error async event
  0x8002 occurred
qla2xxx [0000:65:00.0]-00af:8: Performing ISP error recovery -
  ha=0000000058183fda.
BUG: kernel NULL pointer dereference, address: 0000000000000000
PF: supervisor instruction fetch in kernel mode
PF: error_code(0x0010) - not-present page
PGD 0 P4D 0
Oops: 0010 [#1] SMP
CPU: 2 PID: 9446 Comm: qla2xxx_8_dpc Tainted: G           O       6.1.133 #1
Hardware name: Supermicro Super Server/X11SPL-F, BIOS 4.2 12/15/2023
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90001f93dc8 EFLAGS: 00010206
RAX: 0000000000000282 RBX: 0000000000000355 RCX: ffff88810d16a000
RDX: ffff88810dbadaa8 RSI: 0000000000080000 RDI: ffff888169dc38c0
RBP: ffff888169dc38c0 R08: 0000000000000001 R09: 0000000000000045
R10: ffffffffa034bdf0 R11: 0000000000000000 R12: ffff88810800bb40
R13: 0000000000001aa8 R14: ffff888100136610 R15: ffff8881070f7400
FS:  0000000000000000(0000) GS:ffff88bf80080000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000010c8ff006 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ? __die+0x4d/0x8b
 ? page_fault_oops+0x91/0x180
 ? trace_buffer_unlock_commit_regs+0x38/0x1a0
 ? exc_page_fault+0x391/0x5e0
 ? asm_exc_page_fault+0x22/0x30
 __qla2x00_abort_all_cmds+0xcb/0x3e0 [qla2xxx_scst]
 qla2x00_abort_all_cmds+0x50/0x70 [qla2xxx_scst]
 qla2x00_abort_isp_cleanup+0x3b7/0x4b0 [qla2xxx_scst]
 qla2x00_abort_isp+0xfd/0x860 [qla2xxx_scst]
 qla2x00_do_dpc+0x581/0xa40 [qla2xxx_scst]
 kthread+0xa8/0xd0
 </TASK>

Then commit 4475afa2646d ("scsi: qla2xxx: Complete command early within
lock") added the spinlock back, because not having the lock caused a
race and a crash.  But qla2x00_abort_srb() in the switch below already
checks for qla2x00_chip_is_down() and handles it the same way, so the
code above the switch is now redundant and still buggy in target-mode.
Remove it.

## Affected Products

- Linux — Linux (231cfa78ec5badd84a1a2b09465bfad1a926aba1)
- Linux — Linux (d6f7377528d2abf338e504126e44439541be8f7d)
- Linux — Linux (cd0a1804ac5bab2545ac700c8d0fe9ae9284c567)
- Linux — Linux (0367076b0817d5c75dfb83001ce7ce5c64d803a9)
- Linux — Linux (9189f20b4c5307c0998682bb522e481b4567a8b8)
- Linux — Linux (415d614344a4f1bbddf55d724fc7eb9ef4b39aad)
- Linux — Linux (6.3)
- Linux — Linux (0)
- Linux — Linux (5.10.248)
- Linux — Linux (5.15.198)
- Linux — Linux (6.1.160)
- Linux — Linux (6.6.120)
- Linux — Linux (6.12.64)
- Linux — Linux (6.18.3)
- Linux — Linux (6.19)
- Linux — Linux (5.10.177)
- Linux — Linux (5.15.105)
- Linux — Linux (6.1.22)
- Linux — Linux (5.4.240)
- Linux — Linux (6.2.9)

## References

- [CNA](https://git.kernel.org/stable/c/b04b3733fff7e94566386b962e4795550fbdfd3d)
- [CNA](https://git.kernel.org/stable/c/50b097d92c99f718831b8b349722bc79f718ba1b)
- [CNA](https://git.kernel.org/stable/c/c5c37a821bd1708f26a9522b4a6f47b9f7a20003)
- [CNA](https://git.kernel.org/stable/c/e9e601b7df58ba0c667baf30263331df2c02ffe1)
- [CNA](https://git.kernel.org/stable/c/b10ebbfd59a535c8d22f4ede6e8389622ce98dc0)
- [CNA](https://git.kernel.org/stable/c/1c728951bc769b795d377852eae1abddad88635d)
- [CNA](https://git.kernel.org/stable/c/b57fbc88715b6d18f379463f48a15b560b087ffe)
- [siemens-SADP](https://cert-portal.siemens.com/productcert/html/ssa-019113.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.29%
- **EPSS Percentile:** 22.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._