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

In the Linux kernel, the following vulnerabilities have been resolved: jfs: xattr: fixed buffer overflow for invalid xattr values. When the xattr size is not as expected, it is printed out to the kernel log in hexadecimal format as a form of debugging. However, when that xattr size is larger than...

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: net: The TOCTOU issue in skisreadable has been fixed. sk-skprot-sockisreadable is a valid function pointer when sk resides in a sockmap. After the last skpsockput call which usually occurs when a socket is removed from the sockma...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fixed an issue where free was called after the memory was allocated. Our code analyzer reported a Use-after-Free UAF vulnerability. In the function siwallocmr, it calls siwmraddmemmr,.... In the implementation of...

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

In the Linux kernel, the following vulnerability has been resolved: kcm: Fixed a memory leak in the error path of kcmsendmsg. The syzbot reported a memory leak as follows: BUG: Memory leak Unreferenced object 0xffff88810b088c00 size 240: Comm “syz-executor186”, pid 5012, jiffies 4294943306 age...

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: fbdev: core: fbcvt: avoid division by 0 in fbcvthperiod In fbfindmodecvt, if mode-refresh happens to be 0x80000000, cvt.frefresh will become 0 when multiplied by 2 due to overflow. This value is then passed to fbcvthperiod, where...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm: bridge: adv7511: Unregistering the i2c device after unregistering the CEC adapter. The cecunregisteradapter function assumes that the underlying CEC adapter is callable. For example, if the CEC adapter currently has a valid...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bfq: Avoid merging queues with different parents It can happen that the parent of a bfqq changes between the moment we decide that two queues are worth merging and set bic-stablemergebfqq and the moment bfqsetupmerge is called...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: scsi: mpt3sas: Fixed a memory leak Added a forgotten kfree function...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Security issue: Restrict CONFIGZEROCALLUSEDREGS to GCC or Clang version 15.0.6 or later. A bug in Clang’s implementation of -fzero-call-used-regs can lead to NULL pointer dereferencing see the links above the check for more...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net: macb: fixed the use of “free” after calling “rmmod”. “platdev-dev-platformdata” is released by calling “platformdeviceunregister”. The use of “pclk” and “hclk” constitutes a use-after-free. Since “deviceunregister” does n...

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

In the Linux kernel, the following vulnerability has been resolved: mm/swapfile: condresched was added to getswappages. A softlockup still occurs in getswappages under memory pressure. With 64 CPU cores, 64GB of memory, and 28 zram devices, the size of each zram device is 50MB, and they all have...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: wan: farsync: Fix use-after-free bugs caused by unfinished tasklets When the FarSync T-series card is being detached, the fstcardinfo is deallocated in fstremoveone. However, the fsttxtask or fstinttask may still be running ...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: USB: bcm63xxudc: fixed a memory leak that occurred when using debugfslookup. When calling debugfslookup, the result must be processed by calling dput; otherwise, a memory leak will occur over time. To simplify things, simply call...

Astra Linux – Vulnerability in Linux

A memory leak vulnerability was discovered in the Linux kernel’s llcpsockconnect function...

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

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a race condition when deleting the quota root from the “dirtycowonlyroots” list. When disabling quotas, we delete the quota root from the fsinfo-dirtycowonlyroots list without locking it, which requires the protectio...

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

In the Linux kernel, the following vulnerability has been resolved: btrfs: Additional debug information will be output if an inline backref cannot be found. BUG Syzbot reported several warnings that were triggered within the function lookupInlineExtentBackref. CAUSE As usual, the reproducer of th...

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

A issue was discovered in the Linux kernel before version 6.3.2. A use-after-free was found in saa7134finidev in drivers/media/pci/saa7134/saa7134-core.c...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cpufreq: governor: Using the kobject release method to free dbsdata The struct dbsdata contains a struct govattrset, and the struct govattrset contains a kobject. Since every kobject must have a release method, and we cannot...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: net:emac/emac-mac: A use-after-free issue was addressed in emacmactxbufsend. In emacmactxbufsend, it calls emactxfilltpd.., skb,... If an error occurs in emactxfilltpd, the skb will be freed via devkfreeskbskb in the error branch...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mac802154: fixed the missing INITLISTHEAD in ieee802154ifadd. The kernel fault injection test reports a NULL pointer dereference as follows: BUG: NULL pointer dereferencing in the kernel; address: 0000000000000008 RIP:...