CVE-2026-98155
In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Address potential out-of-bounds read in resp_worker() Although 'commit 2feec5ae5df7 ("accel/qaic: Handle DBC deactivation if the owner went away")' fixes the scenario it was intended for by walking the message and only decoding QAIC_TRANS_DEACTIVATE_FROM_DEV, if present, it skipped over the bounds checking code that is included in decode_message(). This could lead to issues such as reading past the slab allocation's end, infinite loops or kernel panics. For those issues to happen, a malformed wire message is needed to be sent from the device. Instead of duplicating the bounds checking code already present in decode_message(), use the function inside resp_worker().
Affected versions
Linux kernel versions
6.6.134,
6.12.81,
6.18.22,
6.19.12,
7.0
and later are affected. Fixed in
6.6.158,
6.12.111,
6.18.53,
7.2.7,
7.3-rc2
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-98155?
CVE-2026-98155 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.6.134 onward and has been patched in 6.6.158, 6.12.111, 6.18.53 and others. CVE-2026-98155 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-98155?
Yes. CVE-2026-98155 has been patched. Fixed versions include 6.6.158, 6.12.111, 6.18.53 and others. If you are running Linux kernel 6.6.134 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98155 actively exploited?
No. CVE-2026-98155 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.