Answer in brief
CVE-2024-49979 records a High severity (CVSS 7.5) vulnerability in net: gso: fix tcp fraglist segmentation after pull from frag_list. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c2ea8cab368b9f25b5937a7f07ab1a66e90b8064 <75733986fcb0725c0033cde94764389e287b331e || >=1f2b859225eb8d1ec974214ce4a581f8c528ae57 <e19201b0c67da5146eaac06fd3d44bd7945c3448 || >=bee88cd5bd83d40b8aec4d6cb729378f707f6197 <3fdd8c83e83fa5e82f1b5585245c51e0355c9f46 || >=bee88cd5bd83d40b8aec4d6cb729378f707f6197 <2d4a83a44428de45bfe9dccb0192a3711d1097e0 || >=bee88cd5bd83d40b8aec4d6cb729378f707f6197 <17bd3bd82f9f79f3feba15476c2b2c95a9b11ff8 | 75733986fcb0725c0033cde94764389e287b331e, e19201b0c67da5146eaac06fd3d44bd7945c3448, 3fdd8c83e83fa5e82f1b5585245c51e0355c9f46, 2d4a83a44428de45bfe9dccb0192a3711d1097e0, 17bd3bd82f9f79f3feba15476c2b2c95a9b11ff8 |
| Linux/Linuxgeneric | 6.10 | Not reported |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: net: gso: fix tcp fraglist segmentation after pull from frag_list Detect tcp gso fraglist skbs with corrupted geometry (see below) and pass these to skb_segment instead of skb_segment_list, as the first can segment them correctly. Valid SKB_GSO_FRAGLIST skbs - consist of two or more segments - the head_skb holds the protocol headers plus first gso_size - one or more frag_list skbs hold exactly one segment - all but the last must be gso_size Optional datapath hooks such as NAT and BPF (bpf_skb_pull_data) can modify these skbs, breaking these invariants. In extreme cases they pull all data into skb linear. For TCP, this causes a NULL ptr deref in __tcpv4_gso_segment_list_csum at tcp_hdr(seg->next). Detect invalid geometry due to pull, by checking head_skb size. Don't just drop, as this may blackhole a destination. Convert to be able to pass to regular skb_segment. Approach and description based on a patch by Willem de Bruijn.
Quoted source text, attributed separately from HOL analysis.