Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ntfs: Fixed a panic caused by a slab-out-of-bounds condition in ntfslistxattr Here is a bug report from syzbot: BUG: KASAN: Slab-out-of-bounds in ntfslistea fs/ntfs3/xattr.c:191 inline BUG: KASAN: Slab-out-of-bounds in...

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

In the Linux kernel, the following vulnerability has been resolved: scsi: ses: Fixed a slab-out-of-bounds issue in sesintfremove. A fix for the issue is as follows: BUG: KASAN: A slab-out-of-bounds condition occurred in sesintfremove+0x23f/0x270 ses. The size of the read operation was 8 bytes at...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Enhanced the attribute size check This combines the overflow and boundary check so that all attribute sizes will be properly examined during enumeration. 169.181521 BUG: KASAN: Out-of-bounds access in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mptcp: The issue related to “slab-use-after-free” in inetlookupestablished has been fixed. The lookups in the ehash table are performed without locking, and they rely on SLABTYPESAFEBYRCU to ensure the stability of socket memory...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed a slab-out-of-bounds issue in smb2allocaterspbuf. If -ProtocolId is set to SMB2 TRANSFORMPROTONUM, the validation of the request size could be skipped. If the request size is smaller than sizeofstruct smb2queryinfore...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: Clear nfctarget before being used A slab-out-of-bounds read occurred in nlaput, called from nfcgenlsendtarget. This issue arises when target-sensbreslen is too large; this value is duplicated from an nfctarget in pn53...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ipv4: Handled attempts to delete multipath routes when the fibinfo contains a reference to nh. Gwangun Jung reported a buffer-overflow vulnerability in fibnhmatch: fibnhmatch+0xf98/0x1130;...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm: slub: Fix the invocation of flushcpuslab and freeslab in the task context. The commit 5a836bf6b09f “mm: slub: move the invocation of flushcpuslab and freeslab out of the IRQ context” fixes this issue by moving all invocations...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: udf: Fixed a slab-out-of-bounds write bug in udffindentry Syzbot reported a slab-out-of-bounds Write bug: loop0: A capacity change from 0 to 2048 was detected. ==================================================================...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: A fix was made to prevent race conditions during the fsyncentryslab access by multiple f2fs filesystem instances. As reported by syzbot, there is a use-after-free issue during f2fs recovery: A use-after-free occurs when...

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

In the Linux kernel, the following vulnerability has been resolved: f2fs: avoided format-overflow warnings With GCC and the W=1 option, there is a warning like this: fs/f2fs/compress.c: In the function ‘f2fsinitpagearraycache’: fs/f2fs/compress.c:1984:47: Error: The ‘%u’ directive is writing 1 to...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/slabcommon: The corruption of the slabcaches list after kmemcacheDestroy has been fixed. After the commit in “Fixes…”, if a module that creates a slab cache does not release all of its allocated objects before destroying the...

Astra Linux – Vulnerability in Linux 5.10

Ubuntu Linux 6.8, 6.17, and 7.0 contain AppArmor patches that incorrectly attempt to free a pointer that was not previously allocated using kmalloc. At the same time, allocated memory is also leaked. This bug can be triggered by an unprivileged local user, and it can result in corruption of slab...

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: Scsi: sg: Fix slab-use-after-free issue in sgrelease A use-after-free bug was fixed in sgrelease, detected by syzbot with KASAN: Bug: KASAN: Slab-use-after-free in lockrelease+0x151/0xa30 kernel/locking/lockdep.c:5838...

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: Tunnels: Fixed the crash when generating IPV4 PMTU errors due to KASAN. If we attempt to emit an ICMP error in response to a non-linear SKB, we encounter the following issue: Bug: KASAN: Out-of-bounds access in...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fixed a slab-out-of-bounds read in hdrdeletede. Here is a bug report from syzbot: Bug: KASAN: Slab-out-of-bounds in hdrdeletede+0xe0/0x150, fs/ntfs3/index.c:806. A read of size 16842960 was performed at address...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the net/sched/schcbq.c file of the Linux kernel, from version 6.1.4 onwards, cbqclassify allows attackers to cause a denial of service due to type confusion. Non-negative numbers can sometimes indicate a TCACTSHOT condition, rather than valid classification results, leading to improper...

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

In the Linux kernel, the following vulnerabilities have been resolved: BUG: KASAN: Slab-out-of-bounds in crc32body lib/crc32.c:111 inline BUG: KASAN: Slab-out-of-bounds in crc32legeneric lib/crc32.c:179 inline BUG: KASAN: Slab-out-of-bounds in crc32lebase+0x58c/0x626 lib/crc32.c:197 A read of siz...

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

In the Linux kernel, the following vulnerability has been resolved: Wifi: brcmfmac: A slab-out-of-bounds read occurred in brcmfgetassocies. This bug could occur when associnfo-reqlen, which is a value from a URB provided by a USB device, is larger than the size of the buffer, which is defined as...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fixed an out-of-bounds access in rpage. When PAGESIZE is 64K, if logreadrst calls readlogpage for the first time, the size of buffer will be equal to DefaultLogPageSize4K. However, for buffer operations like memcpy, if...