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: legitimizemnt. The check for MNTSYNCUMOUNT should be performed under mountlock. … Otherwise, we risk stealing the final mntput from sync umount. This occurs after umount2 verifies that the victim is not busy, but before it sets...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: MGMT: Fixed a slab-use-after-free read in setpoweredsync. This fix resolves the following crash: BUG: KASAN: Slab-use-after-free in setpoweredsync+0x3a/0xc0, net/bluetooth/mgmt.c:1353. A read of size 8 at address...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ax25: Fixing use-after-free bugs caused by ax25dsdeltimer. When the ax25 device is being detached, the ax25devdevicedown function calls ax25dsdeltimer to clean up the slavetimer. When the timer handler is running, the...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: Media: BTTV – Fixed an issue where a use-after-free error occurred due to the btv-timeout timer. There may be a race condition between the btvirqtimeout timer function and bttvremove. The timer is set up in the probe phase, and...

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 Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fixed a race condition in SNDCTLDSPSYNC There is a small race condition in the sndpcmosssync function, which is called from OSS PCM SNDCTLDSPSYNC ioctl. Specifically, the function calls sndpcmossmakeready first, a...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: sound/virtio: Fixed warnings related to cancelsync on uninitialized workstructs. Betty reported encountering the following warning: 8.709131 T221 WARNING: CPU: 2 PID: 221 at kernel/workqueue.c:4182 ... 8.713282 T221 Call trace:...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: i40e: A race condition was fixed by adding an intermediate filter synchronization state. A race condition in the i40e driver was addressed, preventing MAC/VLAN filters from becoming corrupted and leaking data. This issue occurs...

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: espintcp: A race condition in espintcpclose has been fixed. This issue was discovered during a code audit. After espintcpclose is called, espintcptxwork can still be scheduled using functions like the Delayed ACK handler or...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ext4: fixed the idatasem unlock order in ext4indmigrate Fuzzing reported a potential deadlock in jbd2logwaitcommit. This issue occurs when the EXT4IOCMIGRATE ioctl is set to require synchronous updates because the file...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: tipc: Fixed a use-after-free issue in tipcnamedreinit. syzbot identified the following issue: BUG: KASAN: Use-after-free in tipcnamedreinit+0x94f/0x9b0 net/tipc/namedistr.c:413 A 8-byte read at address ffff88805299a000 was...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: mrp: Introduced active flags to prevent UAF when the applicant uninit occurs. The caller of deltimersync must prevent the timer from restarting. If we don’t have this synchronization, there is a small probability that the...

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: Bluetooth: btintel: Fixed a null pointer dereference in btintelreadversion. If hcicmdsyncComplete is triggered and skb is NULL, then hdev-reqskb will also be NULL, which will cause this issue...

Astra Linux – Vulnerability in ntfs-3g

A properly crafted NTFS image can lead to a out-of-bounds access in ntfs inode syncstandardinformation in NTFS-3G 2021.8.22...

Astra Linux – Vulnerability in the 389-DS-base

When using a syncrepl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, resulting in a crash...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: Watchdog: Fixed a possible use-after-free by calling deltimersync. The remove function of this driver calls deltimer. However, that function does not wait until the timer handler is finished. This means that the timer handler may...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Wifi: rtl8xxxu: Added cancelworksync for c2hcmdwork. The workqueue may still be running when the driver is stopped. To avoid a use-after-free, call cancelworksync in rtl8xxxustop...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ath11k: mhi: use mhisyncpowerup If amss.bin is missing, ath11k will crash during the ‘rmmod ath11kpci’ command. The reason for this is that we were using mhipowerup, which does not check for any errors. However, mhisyncpowerup do...

Astra Linux – Vulnerability in Redis

Redis is an in-memory data structure store. In all versions of redis-server with Lua scripting, an authenticated attacker can exploit the master-replica synchronization mechanism to trigger a use-after-free on replicas where replica-read-only is disabled or can be disabled. This may lead to remot...

Astra Linux – Vulnerability in Containerd

Containerd is an open-source container runtime. A bug was discovered in the CRI implementation of Containerd, where programs within a container can cause the Containerd daemon to consume memory indefinitely during the invocation of the ExecSync API. This can result in Containerd consuming all...