7.5

CVE-2026-97536: linux

CVSS: 7.5v3.1HighReceived
AliasesUBUNTU-CVE-2026-97536DEBIAN-CVE-2026-97536
Published 25-09-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2026-97536 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:12074-1

Timeline

  1. 25-09-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix use-after-free of qpair work on queue teardown The response queue MSI-X handler qla2xxx_msix_rsp_q() schedules qla_do_work() via queue_work(ha->wq, &qpair->q_work). qla_do_work() dereferences the qpair (vha, rsp) and takes qpair->qp_lock. During teardown, qla2xxx_delete_qpair() deletes the response queue, which calls free_irq() in qla25xx_free_rsp_que(), and then frees the queue and the qpair. free_irq() waits for running hardirq handlers but does not cancel work already placed on ha->wq. A still-pending q_work then runs qla_do_work() against the freed qpair and response queue, causing a use-after-free. This is especially likely during full adapter teardown, where destroy_workqueue(ha->wq) forces pending work to run after the queue pairs have been freed. Flush the work item with cancel_work_sync() in qla25xx_free_rsp_que() after free_irq() has released the interrupt (so no new work can be queued) and before the response queue and qpair memory are freed (so the flushed handler still sees valid memory). Guard on rsp->qpair and ha->wq to match the INIT_WORK() condition and avoid operating on an uninitialized work_struct.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

26-09-202621-10-2026
EPSS score
0.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.12.113-1 | < 7.2.7-1
Linux1 product
  • linux≥ 68ca949cdb04b4dc71451a999148fbc5f187a220, < 9bd063c082ef0475dfc28c46f607aa3e90fe13d7 | ≥ 68ca949cdb04b4dc71451a999148fbc5f187a220, < dd6c14db0dbb7774278e62c8114902f953540932 | ≥ 68ca949cdb04b4dc71451a999148fbc5f187a220, < 1710a69fd74d0b4bdfcc57c3309b1c4057f70d85 | ≥ 68ca949cdb04b4dc71451a999148fbc5f187a220, < f1f4d1cb93eeeb250eac9405121933e268eefbd3 | ≥ 68ca949cdb04b4dc71451a999148fbc5f187a220, < 19788a55cab61d78e33e0914a5a31d27843e8a4a | 2.6.31

3 vendors · 171 products

References

8 links