Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fixed a use-after-free race condition for maps It is possible that before fastrpcfreemap is called, another thread may call fastrpcmaplookup and obtain a reference to a map that is about to be deleted. The function...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Misc: pciendpointtest: Fixed the panic that occurs when calling pciendpointtestcopy,write,read The dmamapsingle function does not allow zero-length mappings. This causes a panic. A panic was reported on the arm64 architecture:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: BPF: Use VMMAP instead of VMALLOC for the ringbuf area. After the commit 2fd3fb0be1d1 “KASAN, vmalloc: Unpoison VMALLOC pages after mapping”, non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enable...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: secretmem: Disable memfdsecret if arch cannot set the direct map. The memfdsecret syscall returns -ENOSYS if !cansetdirectmap is true. This occurs, for example, in some arm64 configurations, where marking 4k PTEs in the direct ma...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: stmmac: fixed an issue with left shift overflow in DMA queues When the queue number is greater than 4, left shift overflows due to the 32-bit integer variable used in calculations. The mask calculation for MTLRXQDMAMAP1 i...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: BPF: Allow deletion from sockmap/sockhash only if updating is allowed. We have received a surge in reports from syzkaller instances where a BPF program attached to a tracepoint triggered a locking rule violation by performing a...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Allow access to LPM maps from sleepable BPF programs. trielookupelem annotates its rcudereferencecheck operation with only rcureadlockbhheld. Since rcudereferencecheckp, c resolves to "c || rcureadlockheld, this does not...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ice: fix vsi-txqmap sizing The approach of having XDP queue per CPU regardless of user's setting exposed a hidden bug that could occur in case when Rx queue count differ from Tx queue count. Currently vsi-txqmap's size is equal t...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf: devmap: provide rxq after redirect The rxq structure contains a pointer to the device from which the redirect occurred. Currently, the BPF program that is executed after a redirect via BPFMAPTYPEDEVMAP does not set this...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed an issue where the extent map was used after freeing memory when adding pages to compressed Bio data structures. In the function addrabiopages, we access the extent map to calculate ‘addsize’. After releasing the...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: In the xskmapdeleteelem function, an unsigned integer map-maxentries is compared with a user-controlled signed integer k. Due to implicit type conversion, a large unsigned value for map-maxEntries can bypass the intended bounds...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: irqchip/realtek-rtl: The refcount leak in mapinterrupts has been fixed. The offindnodebyphandle function returns a node pointer with a incremented refcount. We should use ofnodeput on it when there is no longer a need for it. Thi...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: pinctrl: devicetree: fixed null pointer dereferencing in pinctrldttomap Here is the BUG report by KASAN regarding null pointer dereferencing: BUG: KASAN: nullptrderef in strcmp+0x2e/0x50 A read of size 1 was performed at address...

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

In the Linux kernel, the following vulnerability has been resolved: of/irq: Prevent device address out-of-bounds read in interrupt map walk When ofirqparseraw is invoked with a device address smaller than the interrupt parent node from address-cells property, KASAN detects the following...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbd: fix dmaunmapsg nents The dmaunmapsg functions should be called with the same nents as the dmamapsg, not with the value returned by the map function...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: bpf, sockmap: Fixed an infinite loop issue when len is 0 in the tcpbpfrecvmsg parser. When the buffer length of the recvmsg system call is 0, a soft lockup problem occurred. watchdog: BUG: Soft lockup – CPU3 stuck for 27...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: fix shift-out-of-bounds in dbDiscardAG. This fix should apply to most URSAN bugs that were recently detected by syzbot, by addressing the issue related to dbMount. Since syzbot is allegedly feeding invalid data into the...

Astra Linux – Vulnerability in hdf5

A SIGFPE signal is raised in the function H5Dcreatechunkfilemaphyper of H5Dchunk.c in the HDF HDF5 through 1.10.3 library during an attempt to parse a crafted HDF file. This occurs due to incorrect protection against division by zero. This could allow a remote denial-of-service attack...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Prevent the use of a lock before it is initialized. If a failure occurs during the probe of hfi1 before the sdmamaplock is initialized, the call to hfi1freedevdata will attempt to use a lock that has not been...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Mark the bpf prog stack with kmsanunpoisonmemory in interpreter mode. syzbot reported uninitialized memory usage during maplookup,deleteelem. ========== BUG: KMSAN: uninitvalue in devmaplookupelem kernel/bpf/devmap.c:441...