Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: nvme-fc: The use of lock access to portstate and rportstate was corrected. nvmefcunregisterremote removes the remote port from an lport object at any time when there is no active association. This issue conflicts with the...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed a UAF issue in bpftrampolinelinkcgroupshim. The root cause of this bug is that when bpflinkput reduces the refcount of shimlink-link.link to zero, the resource is considered released, but it may still be referenced via...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fs/proc: fixed a UAF in procreaddirde. The pde is erased from the subdir rbtree through rberase, but the node is not set to EMPTY, which may lead to UAF access. We should use RBCLEARNODE to set the erased node to EMPTY. Then,...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrumrouter: Fix neighbor use-after-free We sometimes encounter situations where a use-after-free occurs when dereferencing a neighbor pointer. The issue seems to arise because the driver stores a pointer to the neighbo...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: cadence: The issue involves fixing a situation where the NULL pointer of the DMA device was dereferenced, without ensuring that cdnsctrl-dmac was properly initialized first. The pointer dmadev was being dereferenced...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Input: tiam335xtsc – fixed an off-by-one error in the wireorder validation. The current validation wireorderi ARRAYSIZEconfig pins allows wireorderi to equal ARRAYSIZEconfig pins, which causes out-of-bounds access when used as an...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: cpufreq/longhaul: handled NULL policy in longhaulexit The longhaulexit function was calling cpufreqcpuget0 without checking for a NULL policy pointer. On some systems, this could lead to a NULL derefrence and a kernel warning or...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Added channlock to protect the ksmbdchannlist xarray. The ksmbdchannlist xarray lacks synchronization, allowing use-after-free situations in multi-channel sessions between lookupchannlist and ksmbdchanndel. Added a...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: ipc: Fix for use-after-free in ipcmsgsendrequest The ipcmsgsendrequest function waits for a generic netlink reply using an ipcmsgtableentry on the stack. The generic netlink handler handlegenericevent/handleresponse fil...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Input: croseckeyb – fix an invalid memory access If the croseckeybregistermatrix function is not called due to “buttonsswitchesonly” in croseckeybprobe, ckdev-idev remains NULL. An invalid memory access is observed in...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: udc: fix use-after-free in usbgadgetstatework A race condition during the gadget teardown can lead to a use-after-free in usbgadgetstatework, as reported by KASAN: - BUG: KASAN: invalid-access in sysfs...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: BPF: Narrow access to the pointer ctx fields is now rejected. The following BPF program, simplified from a syzkaller repro, causes a kernel warning: c r0 = u8 r1 + 169; exit; Here, the pointer field sk is located at offset 168 in...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: can: kvaserusb: kvaserusbreadbulkcallback: fixed the URB memory leak. The memory leak was fixed in a similar manner to the issue in commit 7352e1d5932a “can: gsusb: gsusbreceivebulkcallback: fixed the URB memory leak”. In the...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: xttcpmss: Check the remaining length before reading optlen Quoting the reporter: In net/netfilter/xttcpmss.c lines 53-68, the TCP option parser reads opi+1 directly, without validating the remaining option length. If t...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: can: mcbausb: mcbausbreadbulkcallback: fixed a URB memory leak. The memory leak was fixed in a similar manner to the issue in commit 7352e1d5932a “can: gsusb: gsusbreceivebulkcallback: fixed a URB memory leak”. In mcbausbprobe -...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: - In the net subsystem, use dstdevrcu in sksetupcaps. - Use RCU to protect accesses to dst-dev from sksetupcaps and skdstgsomaxsize. - Also use dstdevrcu in ip6dstmtumaybeforward and ipdstmtumaybeforward. - ip4dsthoplimit can...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: wan/fslucchdlc: Fixed the dmafreecoherent function in uhdlcmemclean. The priv-rxbuffer and priv-txbuffer are allocated together as contiguous buffers in uhdlcinit, but they are freed as two separate buffers in uhdlcmemclean...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed a memory leak in ext4extshiftextents. In ext4extshiftextents, if the extent is NULL during the while loop, the function returns immediately without releasing the path obtained via ext4findextent. This leads to a memor...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: APEI/GHES: Ensure that the allocated size does not exceed CPER. The logic in ghesnew prevents allocating too large records by checking whether they are larger than GHESESTATUSMAXSIZE currently 64KB. However, the allocation is sti...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: liquidio: Fixed an off-by-one error in the setupnicdevices cleanup process. In setupnicdevices, the initialization loop jumps to the label setupnicdevfree if there is a failure. The current cleanup loop whilei-- skips the...