CVE-2024-27406

Summary

In the Linux kernel, the following vulnerability has been resolved:

lib/Kconfig.debug: TEST_IOV_ITER depends on MMU

Trying to run the iov_iter unit test on a nommu system such as the qemu kc705-nommu emulation results in a crash.

KTAP version 1
# Subtest: iov_iter
# module: kunit_iov_iter
1..9

BUG: failure at mm/nommu.c:318/vmap()! Kernel panic - not syncing: BUG!

The test calls vmap() directly, but vmap() is not supported on nommu systems, causing the crash. TEST_IOV_ITER therefore needs to depend on MMU.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux2d71340ff1d41a5b9fc1b30ded12d638b2e2ae96 < e6316749d603fe9c4c91f6ec3694e06e4de632a3affected
LinuxLinux2d71340ff1d41a5b9fc1b30ded12d638b2e2ae96 < 9e6e541b97762d5b1143070067f7c68f39a408f8affected
LinuxLinux2d71340ff1d41a5b9fc1b30ded12d638b2e2ae96 < 1eb1e984379e2da04361763f66eec90dd75cf63eaffected
LinuxLinux6.6affected
LinuxLinux0 < 6.6unaffected
LinuxLinux6.6.19 <= 6.6.*unaffected
LinuxLinux6.7.7 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References