AZL-56157
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-56157.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-56157
- Upstream
- Published
- 2025-01-11T13:15:23Z
- Modified
- 2026-04-01T05:19:44.331849Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- CVE-2024-48881 affecting package kernel for versions less than 5.15.176.3-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bcache: revert replacing ISERRORNULL with ISERR again
Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cachesetflush().
1721 if (!ISERRORNULL(c->root)) 1722 listadd(&c->root->list, &c->btree_cache);
From the above code in cachesetflush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. _bchbtreenodealloc() never returns NULL but c->root is possible to be NULL at above line 1721.
This patch replaces ISERR() by ISERRORNULL() to fix this.
- References