CVE-2024-50036

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: net: do not delay dst_entries_add() in dst_release() dst_entries_add() uses per-cpu data that might be freed at netns dismantle from ip6_route_net_exit() calling dst_entries_destroy() Before ip6_route_net_exit() can be called, we release all the dsts associated with this netns, via calls to dst_release(), which waits an rcu grace period before calling dst_destroy() dst_entries_add() use in dst_destroy() is racy, because dst_entries_destroy() could have been called already. Decrementing the number of dsts must happen sooner....

Affected product and versions

Product

Linux Linux, linux kernel

Affected versions

>= f88649721268999bdff09777847080a52004f691 < 547087307bc19417b4f2bc85ba9664a3e8db5a6a, >= f88649721268999bdff09777847080a52004f691 < e3915f028b1f1c37e87542e5aadd33728c259d96, >= f88649721268999bdff09777847080a52004f691 < a60db84f772fc3a906c6c4072f9207579c41166f, >= f88649721268999bdff09777847080a52004f691 < eae7435b48ffc8e9be0ff9cfeae40af479a609dd, >= f88649721268999bdff09777847080a52004f691 < 3c7c918ec0aa3555372c5a57f18780b7a96c5cfc, >= f88649721268999bdff09777847080a52004f691 < ac888d58869bb99753e7652be19a151df9ecb35d, >= 86e48c03d774e01ccd71ecba4fc4b5c2bc0b5b41, >= 591b1e1bb40152e22cee757f493046a0ca946bf8, >= df90819dafcd6b97fc665f63a15752a570e227a2, >= 9a4fe697023dbe6c25caa1f8b2153af869a29bd2, >= 3.10.50 < 3.11, >= 3.12.26 < 3.13, >= 3.14.14 < 3.15, >= 3.15.7 < 3.16, >= 3.16, >= 3.16 < 6.6.57, >= 6.7 < 6.11.4, 6.12

Fixed versions

3.11, 3.13, 3.15, 3.16, 6.6.57, 6.11.4

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

Not available