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PUBLISHED

CVE-2024-27395

net: openvswitch: Fix Use-After-Free in ovs_ct_exit

Reserved:2024-02-25
Published:2024-05-09
Updated:2024-05-13

Description

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix Use-After-Free in ovs_ct_exit Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal of ovs_ct_limit_exit, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.

Product status

Default status
unaffected

11efd5cb04a1 before 2db9a8c0a01f
affected

11efd5cb04a1 before 589523cf0b38
affected

11efd5cb04a1 before 35880c3fa6f8
affected

11efd5cb04a1 before 9048616553c6
affected

11efd5cb04a1 before bca6fa2d9a9f
affected

11efd5cb04a1 before eaa5e164a211
affected

11efd5cb04a1 before edee0758747d
affected

11efd5cb04a1 before 5ea7b72d4fac
affected

Default status
affected

4.18
affected

Any version before 4.18
unaffected

4.19.313
unaffected

5.4.275
unaffected

5.10.216
unaffected

5.15.158
unaffected

6.1.90
unaffected

6.6.30
unaffected

6.8.9
unaffected

6.9
unaffected

References

https://git.kernel.org/stable/c/2db9a8c0a01fa1c762c1e61a13c212c492752994

https://git.kernel.org/stable/c/589523cf0b384164e445dd5db8d5b1bf97982424

https://git.kernel.org/stable/c/35880c3fa6f8fe281a19975d2992644588ca33d3

https://git.kernel.org/stable/c/9048616553c65e750d43846f225843ed745ec0d4

https://git.kernel.org/stable/c/bca6fa2d9a9f560e6b89fd5190b05cc2f5d422c1

https://git.kernel.org/stable/c/eaa5e164a2110d2fb9e16c8a29e4501882235137

https://git.kernel.org/stable/c/edee0758747d7c219e29db9ed1d4eb33e8d32865

https://git.kernel.org/stable/c/5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2

cve.org CVE-2024-27395

nvd.nist.gov CVE-2024-27395

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