CVE-2024-42099

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxc0bd39601c13ab08e961d77a90dfeeff56056353 < c116475f7d6410b1e6d399207ac75de6cf9c3652affected
LinuxLinuxc0bd39601c13ab08e961d77a90dfeeff56056353 < b3a58f3b90f564f42a5c35778d8c5107b2c2150baffected
LinuxLinux6.9affected
LinuxLinux0 < 6.9unaffected
LinuxLinux6.9.9 <= 6.9.*unaffected
LinuxLinux6.10 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References