Vulnerability details
CVE-2026-46102
Linux LinuxSiemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
net: strparser: fix skb_head leak in strp_abort_strp()
CVSS 3.1
7.5High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 4.9 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a ≤ v < a470ed71c906cc8cbad0d74c9942216698911f8b | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a ≤ v < c2e57695ec9ff9d42f23de70f3805199153d007b | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a ≤ v < e9ae00490d474757c0f9c65073de83e6bb1e5a00 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a ≤ v < 5327dad2ffe9c1b49881dd6d51ff3c6893847568 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a ≤ v < 19ca9475f18f991735f98a22e735c43e95e6298d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a ≤ v < 56082f442023db9be1a5a29d4ee361de4017c0b7 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a ≤ v < fe72340daaf1af588be88056faf98965f39e6032 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a ≤ v < d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3 | CVEProject cvelistV5 (CNA) |
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | All | CVEProject cvelistV5 (CNA) |
References and advisories
9- https://git.kernel.org/stable/c/d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3
- https://git.kernel.org/stable/c/a470ed71c906cc8cbad0d74c9942216698911f8b
- https://git.kernel.org/stable/c/c2e57695ec9ff9d42f23de70f3805199153d007b
- https://git.kernel.org/stable/c/e9ae00490d474757c0f9c65073de83e6bb1e5a00
- https://git.kernel.org/stable/c/5327dad2ffe9c1b49881dd6d51ff3c6893847568
- https://git.kernel.org/stable/c/19ca9475f18f991735f98a22e735c43e95e6298d
- https://git.kernel.org/stable/c/56082f442023db9be1a5a29d4ee361de4017c0b7
- https://git.kernel.org/stable/c/fe72340daaf1af588be88056faf98965f39e6032
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-05-27
- Last updated
- 2026-10-19
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.56%
Probability of exploitation in 30 days
47%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-401Missing Release of Memory after Effective Lifetime