Medium 5.5Published May 20, 2025

CVE-2025-37909net: lan743x: Fix memleak issue when GSO enabled

Updated under an hour ago (Oct 27, 2026, 9:50 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: Fix memleak issue when GSO enabled Always map the `skb` to the LS descriptor. Previously skb was mapped to EXT descriptor when the number of fragments is zero with GSO enabled. Mapping the skb to EXT descriptor prevents it from being freed, leading to a memory leak

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 23f0703c125be490f70501b6b24ed5645775c56a before 093855ce90177488eac772de4eefbb909033ce5f; 23f0703c125be490f70501b6b24ed5645775c56a builds before 6c65ee5ad632eb8dcd3a91cf5dc99b22535f44d9; from 23f0703c125be490f70501b6b24ed5645775c56a before df993daa4c968b4b23078eacc248f6502ede8664; from 23f0703c125be490f70501b6b24ed5645775c56a before a0e0efbabbbe6a1859bc31bf65237ce91e124b9b; from 23f0703c125be490f70501b6b24ed5645775c56a before dae1ce27ceaea7e1522025b15252e3cc52802622; from 23f0703c125be490f70501b6b24ed5645775c56a before 189b05f189cac9fd233ef04d31cb5078c4d09c39; from 23f0703c125be490f70501b6b24ed5645775c56a before f42c18e2f14c1b1fdd2a5250069a84bc854c398c; 23f0703c125be490f70501b6b24ed5645775c56a builds before 2d52e2e38b85c8b7bc00dca55c2499f46f8c8198	CNA record
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
linux linux_kernel linux:linux_kernel	from 4.17 before 5.4.294; from 5.5 before 5.10.238; from 5.11 before 5.15.182; from 5.16 before 6.1.138; from 6.2 before 6.6.90; from 6.7 before 6.12.28; from 6.13 before 6.14.6; 6.15; and 3 more ranges	NVD
debian debian_linux debian:debian_linux	11.0	NVD

References

References

https://git.kernel.org/stable/c/093855ce90177488eac772de4eefbb909033ce5f	patch
https://git.kernel.org/stable/c/6c65ee5ad632eb8dcd3a91cf5dc99b22535f44d9	patch
https://git.kernel.org/stable/c/df993daa4c968b4b23078eacc248f6502ede8664	patch
https://git.kernel.org/stable/c/a0e0efbabbbe6a1859bc31bf65237ce91e124b9b	patch
https://git.kernel.org/stable/c/dae1ce27ceaea7e1522025b15252e3cc52802622	patch
https://git.kernel.org/stable/c/189b05f189cac9fd233ef04d31cb5078c4d09c39	patch
https://git.kernel.org/stable/c/f42c18e2f14c1b1fdd2a5250069a84bc854c398c	patch
https://git.kernel.org/stable/c/2d52e2e38b85c8b7bc00dca55c2499f46f8c8198	patch
https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html	mailing-list
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html	mailing-list
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.