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CVE-2024-50262 In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in…

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in trie_get_next_key() trie_get_next_key() allocates a node stack with size trie->max_prefixlen, while it writes (trie->max_prefixlen + 1) nodes to the stack when it has full paths from the root to leaves. For example, consider a trie with max_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ... 0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with .prefixlen = 8 make 9 nodes be written on the node stack with size 8.

Affected products and versions

Product Affected versions Fixed in
Linux 6.12 earliest → < 6.12 6.12
Linux 6.11 earliest → < 6.11.7 6.11.7
Linux 6.6 earliest → < 6.6.60 6.6.60
Linux 6.1 earliest → < 6.1.116 6.1.116
Linux 5.15 earliest → < 5.15.171 5.15.171
Linux 5.10 earliest → < 5.10.229 5.10.229
Linux 5.4 earliest → < 5.4.285 5.4.285
Linux 4.19 earliest → < 4.19.323 4.19.323
Linux 4.16 No fix stated
Show the 7 other branches
Product Affected versions Fixed in
RUGGEDCOM RST2428P 3.2 earliest → < 3.2 3.2
SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family 3.2 earliest → < 3.2 3.2
SCALANCE XCM-/XRM-/XCH-/XRH-300 family 3.2 earliest → < 3.2 3.2
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 earliest → < 1.1.1 1.1.1
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.0 → < 3.1.5 3.1.5
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 3.1.0 → < 3.1.5 3.1.5
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.0 → < 3.1.5 3.1.5

References

Timeline

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