CVE-2026-98155

accel/qaic: Address potential out-of-bounds read in resp_worker()

State: Published
Severity: Not scored
Published: Sep 25, 2026
Updated: Oct 19, 2026
Reserved: Sep 25, 2026

Description

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().

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	2dd67966f39a2abf8ccb4865031c722e40e01b7f to before 5807a65f301b6c0e73a2dc03dd6f5e80a2861b72Affected 08021f2d4a557d6491e3bcc288e96425f50aa3cf to before f4b64488f3deca63f7fbc7d7c3835b2e668003f9Affected f403094d9075d7c565a3d81002b781c325cb3c07 to before 12deeade460d47031267256ba07add51cc7eabd0Affected 2feec5ae5df785658924ab6bd91280dc3926507c to before c72e81ee46bdd4c221114d6e9515e9b4647616d7Affected 2feec5ae5df785658924ab6bd91280dc3926507c to before ab243f74ab4084ca5c8dec608cb5b0deb27db067Affected ee0180e77e6c8482644569632065411de844c515Affected 6.6.134 to before 6.6.158Affected 6.12.81 to before 6.12.111Affected 6.18.22 to before 6.18.53Affected 6.19.12 to before 6.20Affected
LinuxLinux	7.0Affected before 7.0Not affected 6.6.158 through 6.6.Not affected 6.12.111 through 6.12.Not affected 6.18.53 through 6.18.Not affected 7.2.7 through 7.2.Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

2dd67966f39a2abf8ccb4865031c722e40e01b7f to before 5807a65f301b6c0e73a2dc03dd6f5e80a2861b72Affected
08021f2d4a557d6491e3bcc288e96425f50aa3cf to before f4b64488f3deca63f7fbc7d7c3835b2e668003f9Affected
f403094d9075d7c565a3d81002b781c325cb3c07 to before 12deeade460d47031267256ba07add51cc7eabd0Affected
2feec5ae5df785658924ab6bd91280dc3926507c to before c72e81ee46bdd4c221114d6e9515e9b4647616d7Affected
2feec5ae5df785658924ab6bd91280dc3926507c to before ab243f74ab4084ca5c8dec608cb5b0deb27db067Affected
ee0180e77e6c8482644569632065411de844c515Affected
6.6.134 to before 6.6.158Affected
6.12.81 to before 6.12.111Affected
6.18.22 to before 6.18.53Affected
6.19.12 to before 6.20Affected

LinuxLinux

7.0Affected
before 7.0Not affected
6.6.158 through 6.6.*Not affected
6.12.111 through 6.12.*Not affected
6.18.53 through 6.18.*Not affected
7.2.7 through 7.2.*Not affected
7.3 and laterNot affected

References

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