CyberRota Analysis
AI-GeneratedThe vulnerability in the Linux kernel affects the qed driver, where a double free condition can occur during the allocation of CID bitmaps, potentially leading to memory corruption and system instability. This high-severity issue (CVSS 8.4) should be prioritized by organizations using affected Linux kernel versions, particularly those deploying systems that rely on the qed driver for network functionality, as it could be exploited to disrupt service or escalate privileges. Immediate patching is recommended to mitigate the risk of exploitation.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: qed: fix double free in qed_cxt_tables_alloc() If one of the later PF or VF CID bitmap allocations fails, qed_cid_map_alloc() jumps to cid_map_fail and frees the previously allocated CID bitmaps before returning an error. qed_cxt_tables_alloc() then calls qed_cxt_mngr_free(), which invokes qed_cid_map_free() again. Fix this by setting each CID bitmap pointer to NULL after bitmap_free() to avoid double free. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc3. Runtime reproduction was not attempted because exercising the failing allocation path requires device-specific setup.
Related CVEs
Other vulnerabilities affecting the same vendor(s)