CVE-2026-98559
Received Received - Intake

Use-After-Free in Linux Kernel SMC Module

Publication date: 2026-10-18

Last updated on: 2026-10-18

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix UAF on lgr list traversal in smcr_port_err() smcr_port_err() traverses smc_lgr_list.list without holding smc_lgr_list.lock, allowing a concurrent smc_lgr_terminate_sched() to free an lgr while it is still being dereferenced. Hold smc_lgr_list.lock across the traversal. Update smc_ib_gid_check() to call smcr_port_err() after releasing the lock.

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Meta Information

Published
2026-10-18
Last Modified
2026-10-18
Generated
2026-10-18
EPSS Evaluated
N/A
NVD
CVE-2026-98559
EUVD
EUVD-2026-103604

Affected Vendors & Products

Showing 8 associated CPEs
Vendor Product Version / Range
Linux Linux 541afa10c126b6c22c2a805a559c70cc41fd156e
Linux Linux 541afa10c126b6c22c2a805a559c70cc41fd156e
Linux Linux 541afa10c126b6c22c2a805a559c70cc41fd156e
Linux Linux 541afa10c126b6c22c2a805a559c70cc41fd156e
Linux Linux 541afa10c126b6c22c2a805a559c70cc41fd156e
Linux Linux 541afa10c126b6c22c2a805a559c70cc41fd156e
Linux Linux 541afa10c126b6c22c2a805a559c70cc41fd156e
Linux Linux 5.8

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Exploitability

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KEV
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CWE ID Description
CWE-UNKNOWN

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