Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Media: imon: Make sendpacket more robust syzbot reports that imon has three problems that result in hung tasks due to continuously holding the device lock 1. The first problem is that when usbrxcallbackintf0 receives an -EPROT...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Fixed a potential underflow in virtiotransportgetcredit. The credit calculation in virtiotransportgetcredit uses unsigned arithmetic: c ret = vvs-peerbufalloc - vvs-txcnt - vvs-peerfwdcnt; If the peer reduces its...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: libceph: The calctarget function should set t-paused, rather than simply clearing it. Currently, calctarget clears t-paused if the request should no longer be paused. However, it never sets t-paused, even though it can determine...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: The return value of f2fsrecoverfsyncdata has been fixed. With the following scripts, a panic will occur in f2fs: bash mkfs.f2fs -f /dev/vdd mount /dev/vdd /mnt/f2fs touch /mnt/f2fs/foo sync echo 111 /mnt/f2fs/foo f2fsio fsy...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: can: gsusb: gsusbreceivebulkcallback: Check actuallength before accessing the data. The URB received in gsusbreceivebulkcallback contains a struct gshostframe. The length of the data after the header depends on the gshostframe...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: l2tp: avoided a data race in l2tptunneldelwork We should only access sk-sksocket when dealing with kernel sockets. syzbot reported the following data race: BUG: KCSAN: data race in l2tptunneldelwork / skcommonrelease Task 5365...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksm: The range-walk function is used to bypass holes in scangetnextrmapitem. Currently, scangetnextrmapitem walks every page address in a VMA to locate mergeable pages. This approach becomes highly inefficient when scanning large...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: KVM: Do not corrupt the irqfd routing entry when deassigning an irqfd When deassigning a KVMIRQFD, do not corrupt the irqfd’s copy of the IRQ routing entry. Doing so would break the kvmarchirqbypassdelproducer function on x86...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Wifi: ath10k – Fix for the dmafreecoherent pointer dmaalloccoherent allocates a DMA-mapped buffer and stores the addresses in XXXunaligned fields. These addresses should be reused when freeing the buffer, rather than using the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: pagepool: Fixed a use-after-free in pagepoolrecycleinring. syzbot reported a UAF Use-After-Fault in pagepoolrecycleinring: BUG: KASAN: Slab-use-after-free in lockrelease+0x151/0xa30 in kernel/locking/lockdep.c:5862. A size 8...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: NFSD: NFSv4 file creation neglects setting the ACL. A NFSv4 client that sets an ACL with a named principal during file creation retrieves the ACL later. It finds that the ACL is only a default ACL based on the mode bits, not the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ntfs3: init run lock for extend inode After setting the inode mode of $Extend to a regular file, executing the truncate system call will invoke the dotruncate routine, resulting in an uninitialized runlock error reported by syzbo...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: cifs: Fixed the locking usage for tcon fields. Previously, we used cifstcpseslock to protect many objects that weren’t just server, ses, or tcon lists. Later, we introduced svrlock, seslock, and tc Lock to protect fields withi...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: 9p/xen: Protect xen9pfsfrontfree against concurrent calls The xenwatch thread can race with other backend change notifications and call xen9pfsfrontfree twice, causing the observed general protection fault due to a double-free...

Astra Linux – Vulnerability in Linux 6.12

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 – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fixed a double-free in rxesrqfrominit. In rxesrqfrominit, the queue pointer ‘q’ is assigned to ‘srq-rq.queue’ before copying the SRQ number to user space. If copytouser fails, the function calls rxequeuecleanup to free...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/rds: There is no shortcut for exiting from RDSCONNERROR. RDS connections have a state called “rdsconnpath::cpstate”. Connections transition between states, and this transition occurs under the condition “rdsconnpathtransition...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: tpm: st33zp24: Fixed an issue where missing cleanup was performed after a getburstcount call failed. getburstcount may return -EBUSY when it times out. In such cases, st33zp24send returns directly without releasing the locality...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: - media: cx25821: Fixed a resource leak in cx25821devsetup - Added releasememregion if ioremap fails to release the memory region obtained by cx25821getresources...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: rpmsg: core: fixed a race condition in the driveroverrideshow function and used a core helper function. The driveroverrideshow function reads the driveroverride string without holding the devicelock. However, the store function...