CVE-2026-46102: Linux kernel · net: strparser: fix skb_head leak in strp_abort_strp()
Affects Linux kernelSource CVE Database V5
Not known to be exploited · CVSS 7.5 High · fixed in fe72340daaf1af588be88056faf98965f39e6032 : patch Linux kernel soon.
Data as of 26 Oct 2026, 14:18 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers can reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-10-16.
- Patch
- Available – fixed in fe72340daaf1af588be88056faf98965f39e6032, e9ae00490d474757c0f9c65073de83e6bb1e5a00, d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3 +5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 27 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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Description
In the Linux kernel, the following vulnerability has been resolved: net: strparser: fix skb_head leak in strp_abort_strp() When the stream parser is aborted, for example after a message assembly timeout, it can still hold a reference to a partially assembled message in strp->skb_head. That skb is not released in strp_abort_strp(), which leaks the partially assembled message and can be triggered repeatedly to exhaust memory. Fix this by freeing strp->skb_head and resetting the parser state in the abort path. Leave strp_stop() unchanged so final cleanup still happens in strp_done() after the work and timer have been synchronized.
References
- git.kernel.org/stable/c/d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3 (opens in a new tab)
- git.kernel.org/stable/c/a470ed71c906cc8cbad0d74c9942216698911f8b (opens in a new tab)
- git.kernel.org/stable/c/c2e57695ec9ff9d42f23de70f3805199153d007b (opens in a new tab)
- git.kernel.org/stable/c/e9ae00490d474757c0f9c65073de83e6bb1e5a00 (opens in a new tab)
- git.kernel.org/stable/c/5327dad2ffe9c1b49881dd6d51ff3c6893847568 (opens in a new tab)
- git.kernel.org/stable/c/19ca9475f18f991735f98a22e735c43e95e6298d (opens in a new tab)
- git.kernel.org/stable/c/56082f442023db9be1a5a29d4ee361de4017c0b7 (opens in a new tab)
- git.kernel.org/stable/c/fe72340daaf1af588be88056faf98965f39e6032 (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-784472.html (opens in a new tab)