CVE-2024-53206
tcp: Fix use-after-free of nreq in reqsk_timer_handler().
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: tcp: Fix use-after-free of nreq in reqsk_timer_handler(). The cited commit replaced inet_csk_reqsk_queue_drop_and_put() with __inet_csk_reqsk_queue_drop() and reqsk_put() in reqsk_timer_handler(). Then, oreq should be passed to reqsk_put() instead of req; otherwise use-after-free of nreq could happen when reqsk is migrated but the retry attempt failed (e.g. due to timeout). Let's pass oreq to reqsk_put().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 27, 2024 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
8459d61fbf24967839a70235165673148c7c7f17 < 2dcc86fefe09ac853158afd96b60d544af115dc5 5071beb59ee416e8ab456ac8647a4dabcda823b1 < 9a3c1ad93e6fba67b3a637cfa95a57a6685e4908 997ae8da14f1639ce6fb66a063dab54031cd61b3 < 65ed89cad1f57034c256b016e89e8c0a4ec7c65b 51e34db64f4e43c7b055ccf881b7f3e0c31bb26d < d0eb14cb8c08b00c36a3d5dc57a6f428b301f721 e8c526f2bdf1845bedaf6a478816a3d06fa78b8f < 6d845028609a4af0ad66f499ee0bd5789122b067 e8c526f2bdf1845bedaf6a478816a3d06fa78b8f < c31e72d021db2714df03df6c42855a1db592716c 106e457953315e476b3642ef24be25ed862aaba3 c964bf65f80a14288d767023a1b300b30f5b9cd0
Linux / Linux
6.12
References
git.kernel.org: https://git.kernel.org/stable/c/2dcc86fefe09ac853158afd96b60d544af115dc5 git.kernel.org: https://git.kernel.org/stable/c/9a3c1ad93e6fba67b3a637cfa95a57a6685e4908 git.kernel.org: https://git.kernel.org/stable/c/65ed89cad1f57034c256b016e89e8c0a4ec7c65b git.kernel.org: https://git.kernel.org/stable/c/d0eb14cb8c08b00c36a3d5dc57a6f428b301f721 git.kernel.org: https://git.kernel.org/stable/c/6d845028609a4af0ad66f499ee0bd5789122b067 git.kernel.org: https://git.kernel.org/stable/c/c31e72d021db2714df03df6c42855a1db592716c lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html