High severity8.8NVD Advisory· Published Aug 6, 2026· Updated Aug 17, 2026
CVE-2026-64598
CVE-2026-64598
Description
In the Linux kernel, the following vulnerability has been resolved:
smb/client: Fix error code in smb2_aead_req_alloc()
The "*num_sgs" variable is a u32 so "ERR_PTR(*num_sgs)" doesn't work. We would have to do something similar to the previous line where it's cast to int and then long. However, it's simpler to store the return in an int ret variable.
This bug would eventually result in a crash when dereference the invalid error pointer.
Affected products
3- osv-coords2 versions
< 7.1.7-1.1+ 1 more
- (no CPE)range: < 7.1.7-1.1
- (no CPE)range: >= 6.3.0, < 6.6.145
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/61f28012e5650c619223decdb7970e0d3162e949nvd
- git.kernel.org/stable/c/a187883cc1dc784a4d32537f5d316f1b7b9ad76fnvd
- git.kernel.org/stable/c/a1cc432cb0b0a1f74f98a0db3b94ca880c7947acnvd
- git.kernel.org/stable/c/aa37f5fef78dd11cbf983269da2031e12625c56dnvd
- git.kernel.org/stable/c/cad756733dc3985188983f3e2eb77e2927209099nvd
News mentions
1- Linux Kernel: 25 Vulnerabilities Disclosed in Batch Affecting x86, KVM, USB, and NetworkingVypr Intelligence · Aug 6, 2026