CVE - CVE-2024-48881

CVE-ID
CVE-2024-48881	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: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c->root)) 1722 list_add(&c->root->list, &c->btree_cache); >From the above code in cache_set_flush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. __bch_btree_node_alloc() never returns NULL but c->root is possible to be NULL at above line 1721. This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.
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/336e30f32ae7c043fde0f6fa21586ff30bea9fe2 URL:https://git.kernel.org/stable/c/336e30f32ae7c043fde0f6fa21586ff30bea9fe2 MISC:https://git.kernel.org/stable/c/4379c5828492a4c2a651c8f826a01453bd2b80b0 URL:https://git.kernel.org/stable/c/4379c5828492a4c2a651c8f826a01453bd2b80b0 MISC:https://git.kernel.org/stable/c/5202391970ffbf81975251b3526b890ba027b715 URL:https://git.kernel.org/stable/c/5202391970ffbf81975251b3526b890ba027b715 MISC:https://git.kernel.org/stable/c/5e0e913624bcd24f3de414475018d3023f060ee1 URL:https://git.kernel.org/stable/c/5e0e913624bcd24f3de414475018d3023f060ee1 MISC:https://git.kernel.org/stable/c/b2e382ae12a63560fca35050498e19e760adf8c0 URL:https://git.kernel.org/stable/c/b2e382ae12a63560fca35050498e19e760adf8c0 MISC:https://git.kernel.org/stable/c/cc05aa2c0117e20fa25a3c0d915f98b8f2e78667 URL:https://git.kernel.org/stable/c/cc05aa2c0117e20fa25a3c0d915f98b8f2e78667 MISC:https://git.kernel.org/stable/c/fb5fee35bdd18316a84b5f30881a24e1415e1464 URL:https://git.kernel.org/stable/c/fb5fee35bdd18316a84b5f30881a24e1415e1464
Assigning CNA
kernel.org
Date Record Created
20250109	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 (20250109)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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