CVE-2026-99072
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ipv4: stop route notification sizing when nexthop group shrinks
In the Linux kernel, the following vulnerability has been resolved: ipv4: stop route notification sizing when nexthop group shrinks Commit 680aea08e78c ("net: ipv4: Emit notification when fib hardware flags are changed") added an RCU-only fib_nlmsg_size() call for asynchronous hardware flag notifications. fib_nlmsg_size() checks fib_info_num_path() before each iteration, then fib_info_nhc() independently reloads nh->nh_grp. If RTM_NEWNEXTHOP replaces a group with fewer paths between those loads, fib_info_nhc() returns NULL and fib_nexthop_nlmsg_size() dereferences it. Stop sizing when the indexed path is absent. Nexthop groups are dense, so the current snapshot has no later path.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 680aea08e78c003292415518ad270bc20f9c80b1 | affected | git | 72d9d17092bb37b0717f12042a0817d01a1f9e78 | Unavailable | None listed |
| 680aea08e78c003292415518ad270bc20f9c80b1 | affected | git | ad1c9f1b98c92609e9bb2ae8f05916defc3b0a54 | Unavailable | None listed |
| 680aea08e78c003292415518ad270bc20f9c80b1 | affected | git | c1f48d1c2d5e9efd904dbbc2f2b3d41543e55c49 | Unavailable | None listed |
| 680aea08e78c003292415518ad270bc20f9c80b1 | affected | git | ad2b3a68b8a7d5d27de88e05674e4adb1ce46d88 | Unavailable | None listed |
| 680aea08e78c003292415518ad270bc20f9c80b1 | affected | git | d3daa33c7af92e38f2274bbd2576f58bfbaf89e6 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.12 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.113 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.57 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.11 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |