Answer in brief
CVE-2022-48636 records a High severity (CVSS 7.8) vulnerability in s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup. 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-2022-48636 records a High severity (CVSS 7.8) vulnerability in s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup. 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:6.0:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8e09f21574ea3028d5629e5de759e0b196c690c5 <d86b4267834e6d4af62e3073e48166e349ab1b70 || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <49f401a98b318761ca2e15d4c7869a20043fbed4 || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <aaba5ff2742043705bc4c02fd0b2b246e2e16da1 || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <2e473351400e3dd66f0b71eddcef82ee45a584c1 || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <d3a67c21b18f33c79382084af556557c442f12a6 || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <650a2e79d176db753654d3dde88e53a2033036ac || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <db7ba07108a48c0f95b74fabbfd5d63e924f992d | d86b4267834e6d4af62e3073e48166e349ab1b70, 49f401a98b318761ca2e15d4c7869a20043fbed4, aaba5ff2742043705bc4c02fd0b2b246e2e16da1, 2e473351400e3dd66f0b71eddcef82ee45a584c1, f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b, d3a67c21b18f33c79382084af556557c442f12a6, 650a2e79d176db753654d3dde88e53a2033036ac, db7ba07108a48c0f95b74fabbfd5d63e924f992d |
| Linux/Linuxgeneric | 2.6.25 | Not reported |
Published upstream
Apr 28, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup Fix Oops in dasd_alias_get_start_dev() function caused by the pavgroup pointer being NULL. The pavgroup pointer is checked on the entrance of the function but without the lcu->lock being held. Therefore there is a race window between dasd_alias_get_start_dev() and _lcu_update() which sets pavgroup to NULL with the lcu->lock held. Fix by checking the pavgroup pointer with lcu->lock held.
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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8e09f21574ea3028d5629e5de759e0b196c690c5 <d86b4267834e6d4af62e3073e48166e349ab1b70 || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <49f401a98b318761ca2e15d4c7869a20043fbed4 || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <aaba5ff2742043705bc4c02fd0b2b246e2e16da1 || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <2e473351400e3dd66f0b71eddcef82ee45a584c1 || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <d3a67c21b18f33c79382084af556557c442f12a6 || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <650a2e79d176db753654d3dde88e53a2033036ac || >=8e09f21574ea3028d5629e5de759e0b196c690c5 <db7ba07108a48c0f95b74fabbfd5d63e924f992d | d86b4267834e6d4af62e3073e48166e349ab1b70, 49f401a98b318761ca2e15d4c7869a20043fbed4, aaba5ff2742043705bc4c02fd0b2b246e2e16da1, 2e473351400e3dd66f0b71eddcef82ee45a584c1, f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b, d3a67c21b18f33c79382084af556557c442f12a6, 650a2e79d176db753654d3dde88e53a2033036ac, db7ba07108a48c0f95b74fabbfd5d63e924f992d |
| Linux/Linuxgeneric | 2.6.25 | Not reported |
Published upstream
Apr 28, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup Fix Oops in dasd_alias_get_start_dev() function caused by the pavgroup pointer being NULL. The pavgroup pointer is checked on the entrance of the function but without the lcu->lock being held. Therefore there is a race window between dasd_alias_get_start_dev() and _lcu_update() which sets pavgroup to NULL with the lcu->lock held. Fix by checking the pavgroup pointer with lcu->lock held.
Quoted source text, attributed separately from HOL analysis.