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CVE-2026-98155

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

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 2dd67966f39a2abf8ccb4865031c722e40e01b7f before 5807a65f301b6c0e73a2dc03dd6f5e80a2861b72; affected 08021f2d4a557d6491e3bcc288e96425f50aa3cf before f4b64488f3deca63f7fbc7d7c3835b2e668003f9; affected f403094d9075d7c565a3d81002b781c325cb3c07 before 12deeade460d47031267256ba07add51cc7eabd0; affected 2feec5ae5df785658924ab6bd91280dc3926507c before c72e81ee46bdd4c221114d6e9515e9b4647616d7; affected 2feec5ae5df785658924ab6bd91280dc3926507c before ab243f74ab4084ca5c8dec608cb5b0deb27db067; affected ee0180e77e6c8482644569632065411de844c515; affected 6.6.134 before 6.6.158; affected 6.12.81 before 6.12.111; affected 6.18.22 before 6.18.53; affected 6.19.12 before 6.20
Linux / Linuxaffected 7.0; unaffected 0 before 7.0; unaffected 6.6.158 through 6.6.*; unaffected 6.12.111 through 6.12.*; unaffected 6.18.53 through 6.18.*; unaffected 7.2.7 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References