CVE-2026-23274
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)
netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels IDLETIMER revision 0 rules reuse existing timers by label and always call mod_timer() on timer->timer. If the label was created first by revision 1 with XT_IDLETIMER_ALARM, the object uses alarm timer semantics and timer->timer is never initialized. Reusing that object from revision 0 causes mod_timer() on an uninitialized timer_list, triggering debugobjects warnings and possible panic when panic_on_warn=1. Fix this by rejecting revision 0 rule insertion when an existing timer with the same label is of ALARM type.
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) |
|---|---|---|---|---|---|
| 68983a354a655c35d3fb204489d383a2a051fda7 | affected | git | 32e937dc6e97f5ed3cdfe3fc0b2b19a05e23fa44 | Unavailable | None listed |
| 68983a354a655c35d3fb204489d383a2a051fda7 | affected | git | 144f88054ba0180467356f40895bd660b5dceeec | Unavailable | None listed |
| 68983a354a655c35d3fb204489d383a2a051fda7 | affected | git | 28c7cfaf0c0ab17cbd7754092116fd1af45271f9 | Unavailable | None listed |
| 68983a354a655c35d3fb204489d383a2a051fda7 | affected | git | 54080355999381fed4a26129579a5765bab87491 | Unavailable | None listed |
| 68983a354a655c35d3fb204489d383a2a051fda7 | affected | git | 5e7ece24c5cb75a60402aad4d803c7898ea40aa9 | Unavailable | None listed |
| 68983a354a655c35d3fb204489d383a2a051fda7 | affected | git | f5ef97c13165542480a6ffdbe6f09f40bbb7cbf1 | Unavailable | None listed |
| 68983a354a655c35d3fb204489d383a2a051fda7 | affected | git | f228b9ae2a7e84d1153616d8e71c4236cb1f1309 | Unavailable | None listed |
| 68983a354a655c35d3fb204489d383a2a051fda7 | affected | git | 329f0b9b48ee6ab59d1ab72fef55fe8c6463a6cf | 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) |
|---|---|---|---|---|---|
| 5.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.7 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.167 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.78 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.19 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.9 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |