Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ublk: The SQE128 flag is validated before accessing the cmd field. The ublkctrlcmddump function accesses the sqe-cmd field before checking the IOURINGFSQE128 flag. This could lead to out-of-boundary memory access. The flag...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: iouring: A filename leak was addressed in ioopenatprep. The ioopenatprep function allocates a struct filename using getname. However, if the file is installed in the fixed file table and the OCLOEXEC flag is set, the function...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: gfs2: The use-of-free variable issue in gfs2glockshrinkscan has been fixed. The GLFLRU flag is checked under lrulock in gfs2glockremovefromlru, to remove a glock from the lru list in gfs2glockput. During the shrink scan process,...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Bonding: Restore the IFFSLAVE flag of the bond if a non-Ethernet device is used as a slave during a slave setup failure. A warning was reported by syzbot1. In this case, the bond device itself is a slave, and we attempt to use a...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ptrace: The logic related to getdumpable has been made slightly more robust. The “dumpability” of a task essentially relates to the memory image of the task—the concept stems from whether the task can generate a core dump or not...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: i40e: Do not use the WQMEMRECLAIM flag for the workqueue. The issue was reported by a customer during SRIOV testing. When both the i40e and i40iw drivers are loaded, a warning is triggered in the checkFlushDependency function...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/pt: Fixed a crash that occurred with stop filters in single-range mode. A check for !buf-single was added before calling ptbufferregionsize in places where a missing check could cause a kernel crash. This fix...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: nouveau/dmem: handling of kcalloc allocation failures The kcalloc function in nouveaudmemevictchunk will return null if the physical memory runs out. As a result, if we dereference srcpfns, dstpfns, or dmaaddrs, null pointer...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: replaced BUGON with error handling in updaterefforcow. Instead of using BUGON, simply return an error, log an error message, and abort the transaction if we encounter an extent buffer belonging to the relocation tree th...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: skbuff: The SKBFLSHAREDFRAG bit was not properly propagated through the frag-transfer helpers. Two frag-transfer helpers pskbcopyfclone and skbshift fail to propagate the SKBFLSHAREDFRAG bit in skbshinfo-flags when moving...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: NFS: Automounted file systems should inherit the “ro”, “noexec”, “nodev”, and “sync” flags. When a file system is automatically mounted, it needs to preserve the user-set superblock mount options, such as the “ro” flag...

Astra Linux – Vulnerability in exim4

Exim 4 before 4.94.2 allows Heap-based Buffer Overflows because it mishandles the "-F’.‘” syntax on the command line. This may allow privilege escalation from any user to root. This issue occurs due to the incorrect interpretation of negative sizes in the strncpy function...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: veth: The GRO flag is cleared when XDP is disabled, even when the device is disabled. The NETIFFGRO flag is set automatically when XDP is enabled, because both features use the same NAPI mechanism. The logic for clearing the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: sctp: Detect and prevent references to a freed transport in sendmsg. sctpsendmsg reuses transports whenever possible by performing a lookup based on the socket endpoint and the message destination address. Then,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect After the committed code below, if the MPC subflow is already in the TCPCLOSE status or has fallen back to TCP at the mptcpdisconnect time, mptcpdofastclose skips setting the sendfastclos...

Astra Linux – Vulnerability in unbound

Unbound versions 1.6.4 through 1.9.4 contain a vulnerability in the ipsec module that can lead to the execution of shell code after receiving a specially crafted answer. This issue can only be exploited if Unbound was compiled with the --enable-ipsecmod option, and Isecmod is enabled and utilized...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: f2fs: A sanity check was added for the F2FSInlineDATA flag in the inode during garbage collection GC. The syzbot reports the following f2fs bug: ------------ Cut here ------------ Kernel BUG: At fs/f2fs/inline.c:258 CPU: 1 PID: 3...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fixed a rare race condition in gdlmputlock In gdlmputlock, there is a short period of time during which the DFLUNMOUNT flag is set, but the lockspace has not yet been released. During that period, dlm may still call gdlmast...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nfsd: never defer requests during idmap lookup During the decoding of v4 request compound arguments, certain operations e.g., SETATTR can trigger idmap lookup upcalls. When the responses to these upcalls are delayed beyond the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: unshare: fixed the handling of unsharefs There’s an unpleasant corner case in unshare2: when CLONENEWNS is used in the flags, and current-fs hasn’t been shared at all; in that case, copymntns passes current-fs instead of a privat...