CVE-2024-42099

s390/dasd: Fix invalid dereferencing of indirect CCW data pointer

Description

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Fix invalid dereferencing of indirect CCW data pointer Fix invalid dereferencing of indirect CCW data pointer in dasd_eckd_dump_sense() that leads to a kernel panic in error cases. When using indirect addressing for DASD CCWs (IDAW) the CCW CDA pointer does not contain the data address itself but a pointer to the IDAL. This needs to be translated from physical to virtual as well before using it. This dereferencing is also used for dasd_page_cache and also fixed although it is very unlikely that this code path ever gets used.

N/A

CVSS

Severity:

EPSS 0.07%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/c116475f7d6410b1e6d399207ac75de6cf9c3652
https://git.kernel.org/stable/c/b3a58f3b90f564f42a5c35778d8c5107b2c2150b

Frequently Asked Questions

What is the severity of CVE-2024-42099?: CVE-2024-42099 has not yet been assigned a CVSS score.
How to fix CVE-2024-42099?: To fix CVE-2024-42099, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-42099 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-42099 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-42099?: CVE-2024-42099 affects Linux Linux, Linux Linux.

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