CVE-2026-46102

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a < d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3affected
LinuxLinux43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a < a470ed71c906cc8cbad0d74c9942216698911f8baffected
LinuxLinux43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a < c2e57695ec9ff9d42f23de70f3805199153d007baffected
LinuxLinux43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a < e9ae00490d474757c0f9c65073de83e6bb1e5a00affected
LinuxLinux43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a < 5327dad2ffe9c1b49881dd6d51ff3c6893847568affected
LinuxLinux43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a < 19ca9475f18f991735f98a22e735c43e95e6298daffected
LinuxLinux43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a < 56082f442023db9be1a5a29d4ee361de4017c0b7affected
LinuxLinux43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a < fe72340daaf1af588be88056faf98965f39e6032affected
LinuxLinux4.9affected
LinuxLinux0 < 4.9unaffected
LinuxLinux5.10.258 <= 5.10.*unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.140 <= 6.6.*unaffected
LinuxLinux6.12.86 <= 6.12.*unaffected
LinuxLinux6.18.27 <= 6.18.*unaffected
LinuxLinux7.0.4 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References