CVE-2024-53206: tcp: Fix use-after-free of nreq in reqsk_timer_handler().

Description

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().

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

8459d61fbf24967839a70235165673148c7c7f17 to < 2dcc86fefe09ac853158afd96b60d544af115dc5affected
5071beb59ee416e8ab456ac8647a4dabcda823b1 to < 9a3c1ad93e6fba67b3a637cfa95a57a6685e4908affected
997ae8da14f1639ce6fb66a063dab54031cd61b3 to < 65ed89cad1f57034c256b016e89e8c0a4ec7c65baffected
51e34db64f4e43c7b055ccf881b7f3e0c31bb26d to < d0eb14cb8c08b00c36a3d5dc57a6f428b301f721affected
e8c526f2bdf1845bedaf6a478816a3d06fa78b8f to < 6d845028609a4af0ad66f499ee0bd5789122b067affected
e8c526f2bdf1845bedaf6a478816a3d06fa78b8f to < c31e72d021db2714df03df6c42855a1db592716caffected
106e457953315e476b3642ef24be25ed862aaba3affected
c964bf65f80a14288d767023a1b300b30f5b9cd0affected
5.15.170 to < 5.15.174affected
6.1.115 to < 6.1.120affected
6.6.59 to < 6.6.64affected
6.11.6 to < 6.11.11affected
5.4.293 to < 5.5affected
5.10.237 to < 5.11affected

Linux Linux

Default version status: affected

6.12affected
0 to < 6.12unaffected
5.15.174 to ≤ 5.15.*unaffected
6.1.120 to ≤ 6.1.*unaffected
6.6.64 to ≤ 6.6.*unaffected
6.11.11 to ≤ 6.11.*unaffected
6.12.2 to ≤ 6.12.*unaffected
6.13 to ≤ *unaffected

CVE-2024-53206

tcp: Fix use-after-free of nreq in reqsk_timer_handler().

Description

Affected products

Linux Linux

Linux Linux

References