Bug 2492352 (CVE-2026-53088) - CVE-2026-53088 kernel: net: bcmgenet: fix off-by-one in bcmgenet_put_txcb
Summary: CVE-2026-53088 kernel: net: bcmgenet: fix off-by-one in bcmgenet_put_txcb
Keywords:
Status: NEW
Alias: CVE-2026-53088
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-24 18:07 UTC by OSIDB Bzimport
Modified: 2026-06-25 19:31 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-06-24 18:07:22 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: bcmgenet: fix off-by-one in bcmgenet_put_txcb

The write_ptr points to the next open tx_cb. We want to return the
tx_cb that gets rewinded, so we must rewind the pointer first then
return the tx_cb that it points to. That way the txcb can be correctly
cleaned up.
Comment 1 Keith Grant 2026-06-25 19:26:54 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062408-CVE-2026-53088-6e14@gregkh/T
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