CVE - CVE-2024-41021

CVE-ID
CVE-2024-41021	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: s390/mm: Fix VM_FAULT_HWPOISON handling in do_exception() There is no support for HWPOISON, MEMORY_FAILURE, or ARCH_HAS_COPY_MC on s390. Therefore we do not expect to see VM_FAULT_HWPOISON in do_exception(). However, since commit af19487f00f3 ("mm: make PTE_MARKER_SWAPIN_ERROR more general"), it is possible to see VM_FAULT_HWPOISON in combination with PTE_MARKER_POISONED, even on architectures that do not support HWPOISON otherwise. In this case, we will end up on the BUG() in do_exception(). Fix this by treating VM_FAULT_HWPOISON the same as VM_FAULT_SIGBUS, similar to x86 when MEMORY_FAILURE is not configured. Also print unexpected fault flags, for easier debugging. Note that VM_FAULT_HWPOISON_LARGE is not expected, because s390 cannot support swap entries on other levels than PTE level.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/73a9260b7366d2906ec011e100319359fe2277d0 URL:https://git.kernel.org/stable/c/73a9260b7366d2906ec011e100319359fe2277d0 MISC:https://git.kernel.org/stable/c/9e13767ccefdc4f8aa92514b592b60f6b54882ff URL:https://git.kernel.org/stable/c/9e13767ccefdc4f8aa92514b592b60f6b54882ff MISC:https://git.kernel.org/stable/c/a3aefb871222a9880602d1a44a558177b4143e3b URL:https://git.kernel.org/stable/c/a3aefb871222a9880602d1a44a558177b4143e3b MISC:https://git.kernel.org/stable/c/df39038cd89525d465c2c8827eb64116873f141a URL:https://git.kernel.org/stable/c/df39038cd89525d465c2c8827eb64116873f141a
Assigning CNA
kernel.org
Date Record Created
20240712	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240712)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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