CVE-2026-52916
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)
batman-adv: frag: disallow unicast fragment in fragment
In the Linux kernel, the following vulnerability has been resolved: batman-adv: frag: disallow unicast fragment in fragment batadv_frag_skb_buffer() is called by batadv_batman_skb_recv() when a BATADV_UNICAST_FRAG packet is received. Once all fragments are collected and the packet is reassembled, batadv_recv_frag_packet() calls batadv_batman_skb_recv() again to process the defragmented payload. A malicious sender can craft a BATADV_UNICAST_FRAG packet whose reassembled payload is itself a BATADV_UNICAST_FRAG packet (matryoshka-style nesting). Each nesting level recurses through batadv_batman_skb_recv() without bound, growing the kernel stack until it is exhausted. Since refragmentation or fragments in fragments are not actually allowed, discard all packets which are still BATADV_UNICAST_FRAG packets after the defragmentation process.
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) |
|---|---|---|---|---|---|
| 610bfc6bc99bc83680d190ebc69359a05fc7f605 | affected | git | 0c208fa3859e3a33a1c38bebc41d021166e94ac8 | Unavailable | None listed |
| 610bfc6bc99bc83680d190ebc69359a05fc7f605 | affected | git | bcda4814dc6524283c0b958882cb963d75fe411d | Unavailable | None listed |
| 610bfc6bc99bc83680d190ebc69359a05fc7f605 | affected | git | aea54d0bbe156d5ab7d00d68f66149ff41f4612a | Unavailable | None listed |
| 610bfc6bc99bc83680d190ebc69359a05fc7f605 | affected | git | b54e459cf86943583c1aa2ee3081874e7ab1f5f3 | Unavailable | None listed |
| 610bfc6bc99bc83680d190ebc69359a05fc7f605 | affected | git | 5418be6c2e117bf8a316582795a8e3ff90f45e5d | Unavailable | None listed |
| 610bfc6bc99bc83680d190ebc69359a05fc7f605 | affected | git | 5895ad21c7059a652da83fb817510f7a1e962abf | Unavailable | None listed |
| 610bfc6bc99bc83680d190ebc69359a05fc7f605 | affected | git | 7138c35c9ad39a2fca6264af6b87466471f04ffc | Unavailable | None listed |
| 610bfc6bc99bc83680d190ebc69359a05fc7f605 | affected | git | bc62216dc8e221e3781afa14430f45208bfa9af9 | 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) |
|---|---|---|---|---|---|
| 3.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.13 | Unavailable | None listed |
| 5.10.258 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.209 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.175 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.142 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.92 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.34 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.11 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |