bpf: Fix out-of-bounds write in trie_get_next_key()
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.
CVE-2024-50262
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-50262
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
"lessThan": "e8494ac079814a53fbc2258d2743e720907488ed",
"versionType": "git"
},
{
"status": "affected",
"version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
"lessThan": "91afbc0eb3c90258ae378ae3c6ead3d2371e926d",
"versionType": "git"
},
{
"status": "affected",
"version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
"lessThan": "590976f921723d53ac199c01d5b7b73a94875e68",
"versionType": "git"
},
{
"status": "affected",
"version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
"lessThan": "86c8ebe02d8806dd8878d0063e8e185622ab6ea6",
"versionType": "git"
},
{
"status": "affected",
"version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
"lessThan": "a035df0b98df424559fd383e8e1a268f422ea2ba",
"versionType": "git"
},
{
"status": "affected",
"version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
"lessThan": "90a6e0e1e151ef7a9282e78f54c3091de2dcc99c",
"versionType": "git"
},
{
"status": "affected",
"version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
"lessThan": "c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980",
"versionType": "git"
},
{
"status": "affected",
"version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
"lessThan": "13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21",
"versionType": "git"
}
],
"programFiles": [
"kernel/bpf/lpm_trie.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.323",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.285",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.229",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.171",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.116",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.60",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.11.7",
"versionType": "semver",
"lessThanOrEqual": "6.11.*"
},
{
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"kernel/bpf/lpm_trie.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-50262
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #26799 · Revision 1
- Added to Heist Feed
- Publisher date