Answer in brief
CVE-2026-98169 records a Unknown severity vulnerability in smb: client: fix potential OOB read in smb3_enum_snapshots(). 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.
A CVSS score is not reported in the current record. 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 | >=e02789a53d71334b067ad72eee5d4e88a0158083 <15a221c734b9d044ab769e7e3606b2cab96fb65a || >=e02789a53d71334b067ad72eee5d4e88a0158083 <74995ee8305a7c4d76ee70d6acd996a75eda3c03 || >=e02789a53d71334b067ad72eee5d4e88a0158083 <210f0f1f67817e7d2348b86b5115a9b85ef5c98b || >=e02789a53d71334b067ad72eee5d4e88a0158083 <1cdf0d304d820fb13bf0faf532c3459600f9ea43 || >=e02789a53d71334b067ad72eee5d4e88a0158083 <dbe452a905dfe2804647530a9ff3d7e3826ed04d || >=e02789a53d71334b067ad72eee5d4e88a0158083 <4775c3b7a597907e0b97556c7986fda238a377ae || a94703ff8e3647f8a9a3a92a468450299a7b77e9 || 82a856f527334ffd69aae26e7dd9e03b19c4a520 || 25b981bfe192fd208ba04c81f4aa30ffb5141660 || >=4.9.125 <4.10 || >=4.14.68 <4.15 || >=4.18.6 <4.19 | 15a221c734b9d044ab769e7e3606b2cab96fb65a, 74995ee8305a7c4d76ee70d6acd996a75eda3c03, 210f0f1f67817e7d2348b86b5115a9b85ef5c98b, 1cdf0d304d820fb13bf0faf532c3459600f9ea43, dbe452a905dfe2804647530a9ff3d7e3826ed04d, 4775c3b7a597907e0b97556c7986fda238a377ae, 4.10, 4.15, 4.19 |
| Linux/Linuxgeneric | 4.19 | Not reported |
Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential OOB read in smb3_enum_snapshots() If snapshot_array_size is smaller than GMT_TOKEN_SIZE, smb3_enum_snapshots() sets ret_data_len to sizeof(struct smb_snapshot_array) without verifying the actual length of the server's reply. Because SMB2_ioctl() places no lower bound on the server-supplied OutputCount and allocates retbuf to exactly that length, a short reply results in ret_data_len exceeding the size of retbuf. The subsequent copy_to_user() then reads past the end of retbuf, leaking adjacent slab memory to userspace. The subsequent clamp check is ineffective as it only reduces ret_data_len. Fix this by rejecting replies shorter than sizeof(struct smb_snapshot_array) with -EIO. Note that the bound is set to the 12-byte struct size rather than the 16-byte MIN_SNAPSHOT_ARRAY_SIZE defined in MS-SMB2 3.3.5.15.1, because 12 bytes is exactly what copy_to_user() attempts to read.
Quoted source text, attributed separately from HOL analysis.