Description

In the Linux kernel, the following vulnerability has been resolved:

bpf: Check validity of link->type in bpf_link_show_fdinfo()

If a newly-added link type doesn't invoke BPF_LINK_TYPE(), accessing
bpf_link_type_strs[link->type] may result in an out-of-bounds access.

To spot such missed invocations early in the future, checking the
validity of link->type in bpf_link_show_fdinfo() and emitting a warning
when such invocations are missed.

Classification

CVE ID: CVE-2024-53099

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.08% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/4e8074bb33d18f56af30a0252cb3606d27eb1c13
https://git.kernel.org/stable/c/d5092b0a1aaf35d77ebd8d33384d7930bec5cb5d
https://git.kernel.org/stable/c/b3eb1b6a9f745d6941b345f0fae014dc8bb06d36
https://git.kernel.org/stable/c/8421d4c8762bd022cb491f2f0f7019ef51b4f0a7

Timeline