Bug 2541368 (CVE-2026-98155) - CVE-2026-98155 kernel: accel/qaic: Address potential out-of-bounds read in resp_worker()
Summary: CVE-2026-98155 kernel: accel/qaic: Address potential out-of-bounds read in re...
Keywords:
Status: NEW
Alias: CVE-2026-98155
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-25 11:35 UTC by OSIDB Bzimport
Modified: 2026-09-28 17:03 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-09-25 11:35:17 UTC
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().


Note You need to log in before you can comment on or make changes to this bug.