Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
68983a354a655c35d3fb204489d383a2a051fda7 to < 32e937dc6e97f5ed3cdfe3fc0b2b19a05e23fa44affected68983a354a655c35d3fb204489d383a2a051fda7 to < 144f88054ba0180467356f40895bd660b5dceeecaffected68983a354a655c35d3fb204489d383a2a051fda7 to < 28c7cfaf0c0ab17cbd7754092116fd1af45271f9affected68983a354a655c35d3fb204489d383a2a051fda7 to < 54080355999381fed4a26129579a5765bab87491affected68983a354a655c35d3fb204489d383a2a051fda7 to < 5e7ece24c5cb75a60402aad4d803c7898ea40aa9affected68983a354a655c35d3fb204489d383a2a051fda7 to < f5ef97c13165542480a6ffdbe6f09f40bbb7cbf1affected68983a354a655c35d3fb204489d383a2a051fda7 to < f228b9ae2a7e84d1153616d8e71c4236cb1f1309affected68983a354a655c35d3fb204489d383a2a051fda7 to < 329f0b9b48ee6ab59d1ab72fef55fe8c6463a6cfaffected
Linux Linux
Default version status: affected
5.7affected0 to < 5.7unaffected5.10.253 to ≤ 5.10.*unaffected5.15.203 to ≤ 5.15.*unaffected6.1.167 to ≤ 6.1.*unaffected6.6.130 to ≤ 6.6.*unaffected6.12.78 to ≤ 6.12.*unaffected6.18.19 to ≤ 6.18.*unaffected6.19.9 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/32e937dc6e97f5ed3cdfe3fc0b2b19a05e23fa44 ↗
- https://git.kernel.org/stable/c/144f88054ba0180467356f40895bd660b5dceeec ↗
- https://git.kernel.org/stable/c/28c7cfaf0c0ab17cbd7754092116fd1af45271f9 ↗
- https://git.kernel.org/stable/c/54080355999381fed4a26129579a5765bab87491 ↗
- https://git.kernel.org/stable/c/5e7ece24c5cb75a60402aad4d803c7898ea40aa9 ↗
- https://git.kernel.org/stable/c/f5ef97c13165542480a6ffdbe6f09f40bbb7cbf1 ↗
- https://git.kernel.org/stable/c/f228b9ae2a7e84d1153616d8e71c4236cb1f1309 ↗
- https://git.kernel.org/stable/c/329f0b9b48ee6ab59d1ab72fef55fe8c6463a6cf ↗
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html ↗