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CVE-2026-68379

tcp: fix TIME_WAIT socket reference leak on PSP policy failure

HIGH
7.5
CVSS Score
Published: August 10, 2026 at 12:03 PM UTC
Updated: August 17, 2026 at 06:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: fix TIME_WAIT socket reference leak on PSP policy failure Release the TIME_WAIT socket reference and jump to discard_it upon PSP policy failure in both IPv4 and IPv6 receive paths. This prevents a memory leak of tcp_tw_bucket structures.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.18 ≤ v < 6.18.426.18 ≤ v < 7.1.66.18 ≤ v < 7.26.18659a2899a57da59f433182eba571881884d6323e
Vendor states this is fixed in 2c1931a81122c3cdc4c89448fe0442c69e21c0d5 (fixed)
Vendor states this is fixed in 374742a961becbbfc7fbfd1382d978a05e492741 (fixed)
Vendor states this is fixed in e666af5dcc905ba694745963174d232deb478c55 (fixed)
Vendor states this is fixed in 6.18 (unaffected)
Vendor states this is fixed in 6.18.42 (unaffected)
Vendor states this is fixed in 7.1.6 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Source: cverecord
https://git.kernel.org/stable/c/e666af5dcc905ba694745963174d232deb478c55
Source: cverecord
https://git.kernel.org/stable/c/374742a961becbbfc7fbfd1382d978a05e492741
Source: cverecord
https://git.kernel.org/stable/c/2c1931a81122c3cdc4c89448fe0442c69e21c0d5

CVSS

7.5HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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