Answer in brief
CVE-2026-53270 records a High severity (CVSS 7.8) vulnerability in ipvs: clear the svc scheduler ptr early on edit. 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 7.8. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:4.2:-:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:4.2:rc5:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:4.2:rc6:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:4.2:rc7:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:4.2:rc8:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=05f00505a89acd21f5d0d20f5797dfbc4cf85243 <d10730a1f2caf08088e0db1b19b242f3e6fa5f06 || >=05f00505a89acd21f5d0d20f5797dfbc4cf85243 <e4feec3174036ba772006be74beee0efa09a9eb8 || >=05f00505a89acd21f5d0d20f5797dfbc4cf85243 <7d4f5004511757e3984901ffb412fcf858d80ed5 || >=05f00505a89acd21f5d0d20f5797dfbc4cf85243 <c6376b9b1b4d2bad638256b1b3588e073344ae69 || >=05f00505a89acd21f5d0d20f5797dfbc4cf85243 <14e4689c113b4c06af1069364ade24fdd7055f33 || >=05f00505a89acd21f5d0d20f5797dfbc4cf85243 <25918720ba97f974a4f8d433b5a0132c5b43f6f3 || >=05f00505a89acd21f5d0d20f5797dfbc4cf85243 <19a9493faa4bf3c7bd0a386f30b60b1bb4a3da03 || >=05f00505a89acd21f5d0d20f5797dfbc4cf85243 <193989cc6d80dd8e0460fb3992e69fa03bf0ff9b || c803fddd2a95a70873c68dbff42d4c59fd2e674e || 4ec8fb23158797affae7993c15beba080488482f || >=3.18.23 <3.19 || >=4.1.11 <4.2 | d10730a1f2caf08088e0db1b19b242f3e6fa5f06, e4feec3174036ba772006be74beee0efa09a9eb8, 7d4f5004511757e3984901ffb412fcf858d80ed5, c6376b9b1b4d2bad638256b1b3588e073344ae69, 14e4689c113b4c06af1069364ade24fdd7055f33, 25918720ba97f974a4f8d433b5a0132c5b43f6f3, 19a9493faa4bf3c7bd0a386f30b60b1bb4a3da03, 193989cc6d80dd8e0460fb3992e69fa03bf0ff9b, 3.19, 4.2 |
| Linux/Linuxgeneric | 4.2 | Not reported |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: ipvs: clear the svc scheduler ptr early on edit ip_vs_edit_service() while unbinding the old scheduler clears the svc->scheduler ptr after the scheduler module initiates RCU callbacks. This can cause packets to use the old scheduler at the time when svc->sched_data is already freed after RCU grace period. Fix it by clearing the ptr early in ip_vs_unbind_scheduler(), before the done_service method schedules any RCU callbacks. Also, if the new scheduler fails to initialize when replacing the old scheduler, try to restore the old scheduler while still returning the error code.
Quoted source text, attributed separately from HOL analysis.