CVE - CVE-2023-52462

CVE-ID
CVE-2023-52462	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: bpf: fix check for attempt to corrupt spilled pointer When register is spilled onto a stack as a 1/2/4-byte register, we set slot_type[BPF_REG_SIZE - 1] (plus potentially few more below it, depending on actual spill size). So to check if some stack slot has spilled register we need to consult slot_type[7], not slot_type[0]. To avoid the need to remember and double-check this in the future, just use is_spilled_reg() helper.
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/2757f17972d87773b3677777f5682510f13c66ef URL:https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66ef MISC:https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036 URL:https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036 MISC:https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf URL:https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf MISC:https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174 URL:https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174 MISC:https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae URL:https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae MISC:https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104 URL:https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104
Assigning CNA
kernel.org
Date Record Created
20240220	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 (20240220)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)