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PUBLISHED

CVE-2024-26950

wireguard: netlink: access device through ctx instead of peer

Reserved:2024-02-19
Published:2024-05-01
Updated:2024-06-06

Description

In the Linux kernel, the following vulnerability has been resolved: wireguard: netlink: access device through ctx instead of peer The previous commit fixed a bug that led to a NULL peer->device being dereferenced. It's actually easier and faster performance-wise to instead get the device from ctx->wg. This semantically makes more sense too, since ctx->wg->peer_allowedips.seq is compared with ctx->allowedips_seq, basing them both in ctx. This also acts as a defence in depth provision against freed peers.

Product status

Default status
unaffected

e7096c131e51 before 493aa6bdcffd
affected

e7096c131e51 before 4be453271a88
affected

e7096c131e51 before 09c3fa70f651
affected

e7096c131e51 before c991567e6c63
affected

e7096c131e51 before 93bcc1752c69
affected

e7096c131e51 before d44bd323d8bb
affected

e7096c131e51 before 71cbd32e3db8
affected

Default status
affected

5.6
affected

Any version before 5.6
unaffected

5.10.215
unaffected

5.15.154
unaffected

6.1.84
unaffected

6.6.24
unaffected

6.7.12
unaffected

6.8.3
unaffected

6.9
unaffected

References

https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068

https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5

https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5

https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37

https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996

https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47

https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f

cve.org CVE-2024-26950

nvd.nist.gov CVE-2024-26950

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