net: decrease cached dst counters in dst_release
In the Linux kernel, the following vulnerability has been resolved: net: decrease cached dst counters in dst_release Upstream fix ac888d58869b ("net: do not delay dst_entries_add() in dst_release()") moved decrementing the dst count from dst_destroy to dst_release to avoid accessing already freed data in case of netns dismantle. However in case CONFIG_DST_CACHE is enabled and OvS+tunnels are used, this fix is incomplete as the same issue will be seen for cached dsts: Unable to handle kernel paging request at virtual address ffff5aabf6b5c000 Call trace: percpu_counter_add_batch+0x3c/0x160 (P) dst_release+0xec/0x108 dst_cache_destroy+0x68/0xd8 dst_destroy+0x13c/0x168 dst_destroy_rcu+0x1c/0xb0 rcu_do_batch+0x18c/0x7d0 rcu_core+0x174/0x378 rcu_core_si+0x18/0x30 Fix this by invalidating the cache, and thus decrementing cached dst counters, in dst_release too.
CVE-2025-22057
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-2025-22057
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": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8",
"lessThan": "ccc331fd5bcae131d2627d5ef099d4a1f6540aea",
"versionType": "git"
},
{
"status": "affected",
"version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8",
"lessThan": "92a5c18513117be69bc00419dd1724c1940f8fcd",
"versionType": "git"
},
{
"status": "affected",
"version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8",
"lessThan": "836415a8405c9665ae55352fc5ba865c242f5e4f",
"versionType": "git"
},
{
"status": "affected",
"version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8",
"lessThan": "e833e7ad64eb2f63867f65303be49ca30ee8819e",
"versionType": "git"
},
{
"status": "affected",
"version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8",
"lessThan": "3a0a3ff6593d670af2451ec363ccb7b18aec0c0a",
"versionType": "git"
}
],
"programFiles": [
"net/core/dst.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.87",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.23",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.11",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14.2",
"versionType": "semver",
"lessThanOrEqual": "6.14.*"
},
{
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/core/dst.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-22057
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30456 · Revision 1
- Added to Heist Feed
- Publisher date