CVE - CVE-2024-53113

CVE-ID
CVE-2024-53113	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: mm: fix NULL pointer dereference in alloc_pages_bulk_noprof We triggered a NULL pointer dereference for ac.preferred_zoneref->zone in alloc_pages_bulk_noprof() when the task is migrated between cpusets. When cpuset is enabled, in prepare_alloc_pages(), ac->nodemask may be &current->mems_allowed. when first_zones_zonelist() is called to find preferred_zoneref, the ac->nodemask may be modified concurrently if the task is migrated between different cpusets. Assuming we have 2 NUMA Node, when traversing Node1 in ac->zonelist, the nodemask is 2, and when traversing Node2 in ac->zonelist, the nodemask is 1. As a result, the ac->preferred_zoneref points to NULL zone. In alloc_pages_bulk_noprof(), for_each_zone_zonelist_nodemask() finds a allowable zone and calls zonelist_node_idx(ac.preferred_zoneref), leading to NULL pointer dereference. __alloc_pages_noprof() fixes this issue by checking NULL pointer in commit ea57485af8f4 ("mm, page_alloc: fix check for NULL preferred_zone") and commit df76cee6bbeb ("mm, page_alloc: remove redundant checks from alloc fastpath"). To fix it, check NULL pointer for preferred_zoneref->zone.
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/31502374627ba9ec3e710dbd0bb00457cc6d2c19 URL:https://git.kernel.org/stable/c/31502374627ba9ec3e710dbd0bb00457cc6d2c19 MISC:https://git.kernel.org/stable/c/6addb2d9501ec866d7b3a3b4e665307c437e9be2 URL:https://git.kernel.org/stable/c/6addb2d9501ec866d7b3a3b4e665307c437e9be2 MISC:https://git.kernel.org/stable/c/8ce41b0f9d77cca074df25afd39b86e2ee3aa68e URL:https://git.kernel.org/stable/c/8ce41b0f9d77cca074df25afd39b86e2ee3aa68e MISC:https://git.kernel.org/stable/c/d0f16cec79774c3132df006cf771eddd89d08f58 URL:https://git.kernel.org/stable/c/d0f16cec79774c3132df006cf771eddd89d08f58
Assigning CNA
kernel.org
Date Record Created
20241119	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 (20241119)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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