Answer in brief
CVE-2022-50569 records a High severity (CVSS 7.8) vulnerability in xfrm: Update ipcomp_scratches with NULL when freed. 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.
Answer in brief
CVE-2022-50569 records a High severity (CVSS 7.8) vulnerability in xfrm: Update ipcomp_scratches with NULL when freed. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <debca61df6bc2f65e020656c9c5b878d6b38d30f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a39f456d62810c0efb43cead22f98d95b53e4b1a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1e8abde895b3ac6a368cbdb372e8800c49e73a28 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <18373ed500f7cd53e24d9b0bd0f1c09d78dba87e || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <be81c44242b20fc3bdcc73480ef8aaee56f5d0b6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <03155680191ef0f004b1d6a5714c5b8cd271ab61 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f3bdba4440d82e0da2b1bfc35d3836c8a8e00677 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2c19945ce8095d065df550e7fe350cd5cc40c6e6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8a04d2fc700f717104bfb95b0f6694e448a4537f | debca61df6bc2f65e020656c9c5b878d6b38d30f, a39f456d62810c0efb43cead22f98d95b53e4b1a, 1e8abde895b3ac6a368cbdb372e8800c49e73a28, 18373ed500f7cd53e24d9b0bd0f1c09d78dba87e, be81c44242b20fc3bdcc73480ef8aaee56f5d0b6, 03155680191ef0f004b1d6a5714c5b8cd271ab61, f3bdba4440d82e0da2b1bfc35d3836c8a8e00677, 2c19945ce8095d065df550e7fe350cd5cc40c6e6, 8a04d2fc700f717104bfb95b0f6694e448a4537f |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Oct 22, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: xfrm: Update ipcomp_scratches with NULL when freed Currently if ipcomp_alloc_scratches() fails to allocate memory ipcomp_scratches holds obsolete address. So when we try to free the percpu scratches using ipcomp_free_scratches() it tries to vfree non existent vm area. Described below: static void * __percpu *ipcomp_alloc_scratches(void) { ... scratches = alloc_percpu(void *); if (!scratches) return NULL; ipcomp_scratches does not know about this allocation failure. Therefore holding the old obsolete address. ... } So when we free, static void ipcomp_free_scratches(void) { ... scratches = ipcomp_scratches; Assigning obsolete address from ipcomp_scratches if (!scratches) return; for_each_possible_cpu(i) vfree(*per_cpu_ptr(scratches, i)); Trying to free non existent page, causing warning: trying to vfree existent vm area. ... } Fix this breakage by updating ipcomp_scrtches with NULL when scratches is freed
Quoted source text, attributed separately from HOL analysis.
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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <debca61df6bc2f65e020656c9c5b878d6b38d30f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a39f456d62810c0efb43cead22f98d95b53e4b1a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1e8abde895b3ac6a368cbdb372e8800c49e73a28 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <18373ed500f7cd53e24d9b0bd0f1c09d78dba87e || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <be81c44242b20fc3bdcc73480ef8aaee56f5d0b6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <03155680191ef0f004b1d6a5714c5b8cd271ab61 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f3bdba4440d82e0da2b1bfc35d3836c8a8e00677 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2c19945ce8095d065df550e7fe350cd5cc40c6e6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8a04d2fc700f717104bfb95b0f6694e448a4537f | debca61df6bc2f65e020656c9c5b878d6b38d30f, a39f456d62810c0efb43cead22f98d95b53e4b1a, 1e8abde895b3ac6a368cbdb372e8800c49e73a28, 18373ed500f7cd53e24d9b0bd0f1c09d78dba87e, be81c44242b20fc3bdcc73480ef8aaee56f5d0b6, 03155680191ef0f004b1d6a5714c5b8cd271ab61, f3bdba4440d82e0da2b1bfc35d3836c8a8e00677, 2c19945ce8095d065df550e7fe350cd5cc40c6e6, 8a04d2fc700f717104bfb95b0f6694e448a4537f |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Oct 22, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: xfrm: Update ipcomp_scratches with NULL when freed Currently if ipcomp_alloc_scratches() fails to allocate memory ipcomp_scratches holds obsolete address. So when we try to free the percpu scratches using ipcomp_free_scratches() it tries to vfree non existent vm area. Described below: static void * __percpu *ipcomp_alloc_scratches(void) { ... scratches = alloc_percpu(void *); if (!scratches) return NULL; ipcomp_scratches does not know about this allocation failure. Therefore holding the old obsolete address. ... } So when we free, static void ipcomp_free_scratches(void) { ... scratches = ipcomp_scratches; Assigning obsolete address from ipcomp_scratches if (!scratches) return; for_each_possible_cpu(i) vfree(*per_cpu_ptr(scratches, i)); Trying to free non existent page, causing warning: trying to vfree existent vm area. ... } Fix this breakage by updating ipcomp_scrtches with NULL when scratches is freed
Quoted source text, attributed separately from HOL analysis.