Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Makes bpfrefcountacquire failable for non-owning references This patch fixes an incorrect assumption made in the original bpfrefcount series 0. Specifically, it assumes that the BPF program calling bpfrefcountacquire on a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/msm: adreno: Fixed the issue where ifpcreglist was referenced even though it wasn’t declared. On platforms with an A7xx GPU that does not support IFPC, ifpcreglist is still referenced in a6xxpatchpwrupreglist, which causes...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: TCP: Added sanity tests to TCPQUEUESEQ Qingyu Li reported a syzkaller bug where the repro function changed the RCV SEQ after restoring data in the receive queue. mprotect0x4aa000, 12288, PROTREAD = 0 mmap0x1ffff000, 4096, PROTNON...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: The abort logic in btrfsreplacefileextents has been fixed. Error injection testing uncovered a case where a corrupt file system could occur, with an missing extent in the middle of a file. This occurs because the if...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: “Revert ‘f2fs: fix to do sanity check on extent cache correctly’” The syzbot reports a bug in f2fs as follows: UBSAN: Array-index-out-of-bounds in fs/f2fs/f2fs.h:3275:19 Index 1409 is out of range for type ‘le32923’ aka ‘unsigned...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: Fixed rcutasks stall in threaded busypoll I was debugging a NIC driver when I noticed that when I enabled threaded busypoll, bpftrace hung during startup. The output from dmesg was as follows: rcutaskswaitgp: rcutasks grace...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - riscv: ftrace: Fixed a panic caused by preemption being disabled. In RISCV, we need to use an AUIPC + JALR pair to encode an immediate jump, creating a jump to an address beyond 4K. This may cause errors if we want to enable...

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

In the Linux kernel, the following vulnerability has been resolved: ceph: The “use after free” error was detected by KASAN at the line cephbuffergetarg-xattrbuf;. This means that the reference count could not be incremented before the memory was freed. In the same file, in the handlecapgrant...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/sched: flower: fix filter idr initialization The referenced commit moved the idr initialization too early in flchange, which allows concurrent users to access the filter that is still being initialized and is in an inconsiste...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: soc: rockchip: Fixed the refcount leak in rockchipgrfinit. offindmatchingnodeandmatch returns a node pointer with a incremented refcount. We should use ofnodeput on it after processing. Added ofnodeput to prevent the refcount...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: WireGuard: socket: freeskb in send6 when IPv6 is disabled. I received a report of a memory leak: Unreferenced object: 0xffff8881191fc040 size 232 Command: kworker/u17:0, PID: 23193, Jiffies: 4295238848 age: 3464.870 seconds Hex...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: BPF: Fixed a combination of JIT blinding and pointers to bpf subprogs. The combination of JIT blinding and pointers to bpf subprogs causes the following issue: 36.989548 BUG: Unable to handle a page fault for address:...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: net/smc: A NULL pointer dereferencing issue was addressed in smcpnetfindib. The devname function was called with dev.parent as an argument, but without performing a NULL-check before using it. This issue was resolved by checking...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: txgbe: Space is now reserved for null terminators in propertyEntry. The lists of struct propertyEntry are supposed to be terminated with an empty property. Currently, this driver seems to allocating exactly the amount of spa...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: pinctrl: thunderbay: fixed a possible memory leak in thunderbaybuildfunctions The thunderbayaddfunctions function will free memory associated with thunderbayfuncs when everything is correct. However, thunderbayfuncs will not be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: clk: mmp: pxa1908-apbcp: Fixed the issue where NULL was compared with ISERR. The devmkzalloc function does not return error pointers; it returns NULL in case of an error. Update the check to match this behavior...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: can: dev: cangetechoskb: prevents calling kfreeskb in a hard IRQ context. If a driver calls cangetechoskb during a hardware IRQ which is often, but not always the case, the WARNONinirq in net/core/skbuff.cskbreleaseheadstate migh...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mm/shmem, swap: Fixed a race condition between the truncate operation and the swap entry splitting operation. The helper function for shmem swap does not handle the order of swap entries correctly. It uses xacmpxchgirq to eras...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: drivers/virt/acrn: Fixed the PFNMAP PTE checks in acrnvmrammap. The patch series “mm: Improvements to followpte and fixes for acrn followpte”. Patch 1 fixes a number of issues I identified in the acrn driver. It’s just compile...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: USB: UAS – Fix for the URB unmapping issue when the UAS device is removed during ongoing data transfer When a UAS device is unplugged during data transfer, there is a possibility of a system panic occurring. The root cause is...