High severity7.1NVD Advisory· Published Apr 24, 2026· Updated Jun 1, 2026

CVE-2026-31626

Description

In the Linux kernel, the following vulnerability has been resolved:

staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify()

Initialize le_tmp64 to zero in rtw_BIP_verify() to prevent using uninitialized data.

Smatch warns that only 6 bytes are copied to this 8-byte (u64) variable, leaving the last two bytes uninitialized:

drivers/staging/rtl8723bs/core/rtw_security.c:1308 rtw_BIP_verify() warn: not copying enough bytes for '&le_tmp64' (8 vs 6 bytes)

Initializing the variable at the start of the function fixes this warning and ensures predictable behavior.

LLM-synthesized narrative grounded in this CVE's description and references.

Linux/Kernel2 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=4.12,<6.6.136
- (no CPE)
osv-coords11 versions
pkg:apk/chainguard/linux-aws-6.12 pkg:apk/chainguard/linux-aws-6.18 pkg:apk/chainguard/linux-azure-6.18 pkg:apk/chainguard/linux-gcp-6.12 pkg:apk/chainguard/linux-gcp-6.18 pkg:apk/chainguard/linux-qemu-6.12 pkg:apk/chainguard/linux-qemu-6.18 pkg:apk/chainguard/linux-qemu-6.18-bootc-boot-installed pkg:apk/chainguard/linux-vmware-6.12 pkg:apk/chainguard/linux-vmware-6.18 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweed
< 6.12.85-r0+ 10 more
- (no CPE)range: < 6.12.85-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 6.12.85-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 6.12.85-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 6.12.85-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 7.0.3-1.1