CVE-2026-98052

Source
https://cve.org/CVERecord?id=CVE-2026-98052
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98052.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-98052
Downstream
Published
2026-09-25T10:24:00Z
Modified
2026-09-26T03:48:32Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
net: bcmasp: clear txcb->last before writing each descriptor
Details

In the Linux kernel, the following vulnerability has been resolved:

net: bcmasp: clear txcb->last before writing each descriptor

bcmasp_xmit() only wrote txcb->last = true for the final fragment of an SKB; non-final fragments left the field untouched. If a descriptor slot was reused while it still held a stale true from a previous SKB (possible when tx_spb_ring_full() underreported fullness), bcmasp_tx_reclaim() would see last == true mid-SKB and call dev_consume_skb_any() prematurely, freeing the sk_buff while its remaining fragments were still in flight.

Unconditionally clear txcb->last before the conditional set so every descriptor slot starts from a known false state regardless of what a prior transmission left behind.

Database specific
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98052.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
490cb412007de593e07c1d3e2b1ec4233886707c
Fixed
9b26b54861ce05307d39a54ddedddf8747419614
Fixed
47a5cecca925ceb175d5adf712e667acf78f475f
Fixed
17e6ad484dea5ddf1c4a3d6ec77a5929161234de
Fixed
18e5e0ec0e9282c897e2aa81a3e43ccaee03b003

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98052.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.6.0
Fixed
6.12.111
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.53
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.7

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98052.json"