High 7.8Published May 9, 2024

CVE-2024-27396net: gtp: Fix Use-After-Free in gtp_dellink

Updated under an hour ago (Oct 26, 2026, 3:00 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: net: gtp: Fix Use-After-Free in gtp_dellink Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal of gtp_dellink, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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)	043a283d24f40fea4c8a8d06b0e2694c8e372200 builds before 07b20d0a3dc13fb1adff10b60021a4924498da58; from c185e1d6e2752a4b656c3ca878c525fa11f55757 before 718df1bc226c383dd803397d7f5d95557eb81ac7; 94dc550a5062030569d4aa76e10e50c8fc001930 builds before 0caff3e6390f840666b8dc1ecebf985c2ef3f1dd; 94dc550a5062030569d4aa76e10e50c8fc001930 builds before 2e74b3fd6bf542349758f283676dff3660327c07; 94dc550a5062030569d4aa76e10e50c8fc001930 builds before 25a1c2d4b1fcf938356a9688a96a6456abd44b29; 94dc550a5062030569d4aa76e10e50c8fc001930 builds before 2aacd4de45477582993f8a8abb9505a06426bfb6; from 94dc550a5062030569d4aa76e10e50c8fc001930 before cd957d1716ec979d8f5bf38fc659aeb9fdaa2474; from 94dc550a5062030569d4aa76e10e50c8fc001930 before f2a904107ee2b647bb7794a1a82b67740d7c8a64; and 4 more ranges	CNA record
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name)	before V3.1	CISA ADP
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name)	all versions not affected	CISA ADP
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name)	before V3.1	CISA ADP
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	before V1.1.1	CISA ADP
linux linux_kernel linux:linux_kernel	from 4.14.162 before 4.15; from 4.19.93 before 4.19.313; from 5.4.8 before 5.4.275; from 5.5 before 5.10.216; from 5.11 before 5.15.158; from 5.16 before 6.1.90; from 6.2 before 6.6.30; from 6.7 before 6.8.9; and 5 more ranges	NVD
debian debian_linux debian:debian_linux	10.0	NVD

References

References

https://git.kernel.org/stable/c/07b20d0a3dc13fb1adff10b60021a4924498da58	patch
https://git.kernel.org/stable/c/718df1bc226c383dd803397d7f5d95557eb81ac7	patch
https://git.kernel.org/stable/c/0caff3e6390f840666b8dc1ecebf985c2ef3f1dd	patch
https://git.kernel.org/stable/c/2e74b3fd6bf542349758f283676dff3660327c07	patch
https://git.kernel.org/stable/c/25a1c2d4b1fcf938356a9688a96a6456abd44b29	patch
https://git.kernel.org/stable/c/2aacd4de45477582993f8a8abb9505a06426bfb6	patch
https://git.kernel.org/stable/c/cd957d1716ec979d8f5bf38fc659aeb9fdaa2474	patch
https://git.kernel.org/stable/c/f2a904107ee2b647bb7794a1a82b67740d7c8a64	patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html	mailing-list
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.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.