CVE-2026-74391
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)
tracing: Bound synthetic-field strings with seq_buf
In the Linux kernel, the following vulnerability has been resolved: tracing: Bound synthetic-field strings with seq_buf The synthetic field helpers build a prefixed synthetic variable name and a generated hist command in fixed MAX_FILTER_STR_VAL buffers. The current code appends those strings with raw strcat(), so long key lists, field names, or saved filters can run past the end of the staging buffers. Build both strings with seq_buf and propagate -E2BIG if either the synthetic variable name or the generated command exceeds MAX_FILTER_STR_VAL. This keeps the existing tracing-side limit while using the helper intended for bounded command construction. [ sdr: Moved struct seq_buf *s for upside-down x-mas tree formatting ]
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) |
|---|---|---|---|---|---|
| 02205a6752f223779a1b0e9e8ffacbea6e717851 | affected | git | 0c584c27f6649a93ec12061cc779a4bd8f7c1434 | Unavailable | None listed |
| 02205a6752f223779a1b0e9e8ffacbea6e717851 | affected | git | 88b901fdc1662b131ff908cbd017333b61e7acc8 | Unavailable | None listed |
| 02205a6752f223779a1b0e9e8ffacbea6e717851 | affected | git | baa333b2700a7fa3529d504529c8c10060fd687c | Unavailable | None listed |
| 02205a6752f223779a1b0e9e8ffacbea6e717851 | affected | git | cf334620036ad2250e008c7e7bb6646a3938b7b0 | Unavailable | None listed |
| 02205a6752f223779a1b0e9e8ffacbea6e717851 | affected | git | f07883450eb14d1cf020b55d9f3a7ec5683bcd26 | 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) |
|---|---|---|---|---|---|
| 4.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.17 | Unavailable | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |