CVE-2022-48636
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8e09f21574ea3028d5629e5de759e0b196c690c5 < d86b4267834e6d4af62e3073e48166e349ab1b70 | affected |
| Linux | Linux | 8e09f21574ea3028d5629e5de759e0b196c690c5 < 49f401a98b318761ca2e15d4c7869a20043fbed4 | affected |
| Linux | Linux | 8e09f21574ea3028d5629e5de759e0b196c690c5 < aaba5ff2742043705bc4c02fd0b2b246e2e16da1 | affected |
| Linux | Linux | 8e09f21574ea3028d5629e5de759e0b196c690c5 < 2e473351400e3dd66f0b71eddcef82ee45a584c1 | affected |
| Linux | Linux | 8e09f21574ea3028d5629e5de759e0b196c690c5 < f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b | affected |
| Linux | Linux | 8e09f21574ea3028d5629e5de759e0b196c690c5 < d3a67c21b18f33c79382084af556557c442f12a6 | affected |
| Linux | Linux | 8e09f21574ea3028d5629e5de759e0b196c690c5 < 650a2e79d176db753654d3dde88e53a2033036ac | affected |
| Linux | Linux | 8e09f21574ea3028d5629e5de759e0b196c690c5 < db7ba07108a48c0f95b74fabbfd5d63e924f992d | affected |
| Linux | Linux | 2.6.25 | affected |
| Linux | Linux | 0 < 2.6.25 | unaffected |
| Linux | Linux | 4.9.330 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.295 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.260 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.215 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.146 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.71 <= 5.15.* | unaffected |
| Linux | Linux | 5.19.12 <= 5.19.* | unaffected |
| Linux | Linux | 6.0 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70
- https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4
- https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1
- https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1
- https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b
- https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6
- https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac
- https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d
References
- https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70
- https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4
- https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1
- https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1
- https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b
- https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6
- https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac
- https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d
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