Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ubifs: Fixed an issue where the refcount should be incremented after a page is set as private. MM defined the rule 1 very clearly: once a page is marked with the PGprivate flag, the refcount should be incremented for that page...

CVE-2023-54050 ubifs: Fix memleak when insert_old_idx() failed

In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix memleak when insertoldidx failed Following process will cause a memleak for copied up znode: dirtycowznode zn = copyznodec, znode; err = insertoldidxc, zbr-lnum, zbr-offs; if unlikelyerr return ERRPTRerr; // No one...

CVE-2023-53278 ubifs: Fix memory leak in ubifs_sysfs_init()

In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix memory leak in ubifssysfsinit When insmod ubifs.ko, a kmemleak reported as below: unreferenced object 0xffff88817fb1a780 size 8: comm "insmod", pid 25265, jiffies 4295239702 age 100.130s hex dump first 8 bytes: 75 62 6...

CVE-2021-47351 ubifs: Fix races between xattr_{set|get} and listxattr operations

In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix races between xattrset|get and listxattr operations UBIFS may occur some problems with concurrent xattrset|get and listxattr operations, such as assertion failure, memory corruption, stale xattr value1. Fix it by...