Answer in brief
CVE-2024-49996 records a Critical severity (CVSS 9.4) vulnerability in cifs: Fix buffer overflow when parsing NFS reparse points. 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 9.4. 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 | >=d5ecebc4900df7f6e8dff0717574668885110553 <7b222d6cb87077faf56a687a72af1951cf78c8a9 || >=d5ecebc4900df7f6e8dff0717574668885110553 <73b078e3314d4854fd8286f3ba65c860ddd3a3dd || >=d5ecebc4900df7f6e8dff0717574668885110553 <01cdddde39b065074fd48f07027757783cbf5b7d || >=d5ecebc4900df7f6e8dff0717574668885110553 <ec79e6170bcae8a6036a4b6960f5e7e59a785601 || >=d5ecebc4900df7f6e8dff0717574668885110553 <c6db81c550cea0c73bd72ef55f579991e0e4ba07 || >=d5ecebc4900df7f6e8dff0717574668885110553 <803b3a39cb096d8718c0aebc03fd19f11c7dc919 || >=d5ecebc4900df7f6e8dff0717574668885110553 <c173d47b69f07cd7ca08efb4e458adbd4725d8e9 || >=d5ecebc4900df7f6e8dff0717574668885110553 <e2a8910af01653c1c268984855629d71fb81f404 | 7b222d6cb87077faf56a687a72af1951cf78c8a9, 73b078e3314d4854fd8286f3ba65c860ddd3a3dd, 01cdddde39b065074fd48f07027757783cbf5b7d, ec79e6170bcae8a6036a4b6960f5e7e59a785601, c6db81c550cea0c73bd72ef55f579991e0e4ba07, 803b3a39cb096d8718c0aebc03fd19f11c7dc919, c173d47b69f07cd7ca08efb4e458adbd4725d8e9, e2a8910af01653c1c268984855629d71fb81f404 |
| Linux/Linuxgeneric | 5.3 | 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: cifs: Fix buffer overflow when parsing NFS reparse points ReparseDataLength is sum of the InodeType size and DataBuffer size. So to get DataBuffer size it is needed to subtract InodeType's size from ReparseDataLength. Function cifs_strndup_from_utf16() is currentlly accessing buf->DataBuffer at position after the end of the buffer because it does not subtract InodeType size from the length. Fix this problem and correctly subtract variable len. Member InodeType is present only when reparse buffer is large enough. Check for ReparseDataLength before accessing InodeType to prevent another invalid memory access. Major and minor rdev values are present also only when reparse buffer is large enough. Check for reparse buffer size before calling reparse_mkdev().
Quoted source text, attributed separately from HOL analysis.