Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: tcp: cdg: allow tcpcdgrelease to be called multiple times Apparently, mptcp is able to call tcpdisconnect on an already disconnected flow. This is generally fine, unless current congestion control is CDG, because it might trigger...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Input: i8042 – fixed the issue of leaking the platform device when the module was removed. Avoid resetting the i8042platformdevice pointer across modules in i8042probe or i8042remove, so that the device can be properly destroyed ...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: xsk: Fixed a race condition in socket teardown Fixed a race condition in the xsk socket teardown code that could lead to a NULL pointer dereferencing. The current xskunbindcode in xskunbinddev starts by setting xs-state to...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel before version 6.1.3, fs/ntfs3/record.c does not validate resident attribute names. This could lead to an out-of-bounds write vulnerability...

Astra Linux – Vulnerability in Linux 5.10

A issue was discovered in the Linux kernel 5.10.x before 5.10.155. A use-after-free in the iosqpollwaitsq function in fs/iouring.c allows an attacker to crash the kernel, resulting in a denial of service. The finishwait function can be bypassed. An attack can occur in some situations by forkning ...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fixed leaks in the ulist structure during error paths in the qgroup self tests. In the testnosharedqgroup and testmultiplerefs qgroup self tests, if we fail to add the tree reference, remove the extent item, or remove t...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Memory leaks have been fixed in checkfunccall. kmemleak reports this issue: Unreferenced object 0xffff88817139d000 size 2048: comm "testprogs", pid 33246, jiffies 4307381979 age 45851.820s Hex dump first 32 bytes: 01 00 0...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: macvlan: fixed memory leaks in macvlancommonnewlink. kmemleak reports memory leaks in macvlancommonnewlink, as follows: c ip link add link eth0 name .. type macvlan mode source macaddr add kmemleak reports: - A unreferenced...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

The “Use After Free” vulnerability in the Linux kernel’s traffic control index filter tcindex allows for privilege escalation. The imperfect hash area can be updated while packets are being processed, leading to a use-after-free when the ‘tcfextsexec’ function is called with a corrupted tcfext. A...

Astra Linux – Vulnerability in Linux 5.15

In the efirtasmwrapper of efi-rt-wrapper.S, there is a possible way to bypass shadow stack protection due to a logical error in the code. This could result in a local escalation of privileges without the need for additional execution privileges. User interaction is not required for exploitation...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

There is a use-after-free vulnerability in the Linux Kernel that can be exploited to achieve local privilege escalation. To exploit this vulnerability, the CONFIGTLS or CONFIGXFRMESPINTCP kernel configuration flags must be set; however, the operation does not require any special privileges. There...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: nfc: nxp-nci: Fixed a potential memory leak in nxpncisend The nxpncisend function calls nxpncii2cwrite. The skb is only freed when nxpncii2cwrite fails. However, even if nxpncii2cwrite succeeds, the skb is not freed at that...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: sdata can be NULL during AMPDU start The ieee80211txbasessionhandlestart function may return NULL for sdata when a deauthentication process is ongoing. Here is a trace that illustrates the race condition involving...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/msm/dp: Do not complete dpauxcmdfifotx if the irq is not for aux transfer. The DP controller handles three possible interrupt sources: HPDstatus, Controller state changes, and Aux read/write transactions. At every irq, the...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: media: vivid: fix compose-height boundary issue Syzkaller identified a bug: BUG: Unable to handle page faults for address: ffffc9000a3b1000 PF: Supervisor write access in kernel mode PF: Errorcode0x0002 – Not-present page PGD...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Fixed a crash that occurred due to out-of-bounds access to reg2btfids. When the commit e6ac2450d6de “bpf: Support bpf programs that call kernel functions” added support for kfunc, it defined reg2btfids as a convenient way...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: fixed a memory leak in sja1105setupdevlinkregions. When dsadevlinkregioncreate failed in sja1105setupdevlinkregions, priv-regions was not released...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: nvmet: fixed a use-after-free issue. Fixed the following use-after-free complaint triggered by blktests nvme/004: BUG: KASAN: user-memory-access in blkmqcompleterequestremote+0xac/0x350 Read of size 4 at addr 0000607bd1835943 ...

Astra Linux – Vulnerability in Linux 5.15, Linux

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: rndis: prevent integer overflow in rndissetresponse If “BufOffset” is very large, the operation “BufOffset + 8” may lead to an integer overflow...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: USB: gadgetfs: Fix race between mounting and unmounting The syzbot fuzzer and Gerald Lee have identified a use-after-free bug in the gadgetfs driver. This bug involves processes concurrently mounting and unmounting the gadgetf...