CVE-2022-48780
In the Linux kernel, the following vulnerability has been resolved: net/smc: Avoid overwriting the copies of clcsock callback functions The callback functions of clcsock will be saved and replaced during the fallback.
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: net/smc: Avoid overwriting the copies of clcsock callback functions The callback functions of clcsock will be saved and replaced during the fallback. But if the fallback happens more than once, then the copies of these callback functions will be overwritten incorrectly, resulting in a loop call issue: clcsk->sk_error_report |- smc_fback_error_report() <------------------------------| |- smc_fback_forward_wakeup() | (loop) |- clcsock_callback() (incorrectly overwritten) | |- smc->clcsk_error_report() ------------------| So this patch fixes the issue by saving these function pointers only once in the fallback and avoiding overwriting.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1de9770d121ee9294794cca0e0be8fbfa0134ee8Patch
- https://git.kernel.org/stable/c/7de7ba7a8bd4fde0141de8674c13514d0072f0e6Patch
- https://git.kernel.org/stable/c/f00b6c976ae0dfbd9b891175f713f59095d23842Patch
- https://git.kernel.org/stable/c/1de9770d121ee9294794cca0e0be8fbfa0134ee8Patch
- https://git.kernel.org/stable/c/7de7ba7a8bd4fde0141de8674c13514d0072f0e6Patch
- https://git.kernel.org/stable/c/f00b6c976ae0dfbd9b891175f713f59095d23842Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.