Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Landlock: Do not lose track of restrictions on credtransfer. When a process’s credstruct is replaced, this mechanism almost always invokes the credprepare LSM hook. However, in one special case when KEYCTLSESSIONTOPARENT updates...

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

In the Linux kernel, the following vulnerabilities have been resolved: PCI/DPC: Fixed a use-after-free issue when a DPC event occurs concurrently with hot-removal of the same portion of the hierarchy. Keith reported a use-after-free when a DPC event occurred concurrently with the hot-removal of t...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Make sure the first directory block is not a hole. The syzbot constructs a directory that has no dirblock, but it is not inline; in other words, the first directory block is a hole. No errors are reported when creating file...

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

In the Linux kernel, the following vulnerability has been resolved: drm/gma500: fixed the issue of null pointer dereferencing in psbintellvdsgetmodes. In psbintellvdsgetmodes, the return value from drmmodeduplicate is assigned to mode. This could lead to a NULL pointer dereferencing in case of a...

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

In the Linux kernel, the following vulnerabilities have been resolved: kobjectuevent: Fixed issues related to OOB access within zapmodaliasenv. The zapmodaliasenv function incorrectly calculates the size of the memory block to be moved. This can lead to OOB out-of-band memory access issues if the...

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

In the Linux kernel, the following vulnerability has been resolved: net: nexthop: All fields within the struct nexthopgrp structure must be initialized. The struct nexthopgrp contains two reserved fields that are not initialized by nlaputnhgroup, and these fields contain garbage values. This can ...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Missing check for virtio Two missing checks in virtionethdrtoskb allowed syzbot to crash kernels again. 1. After the skbsegment function, the buffer may become non-linear nrfrags != 0. However, since the SKBTXSHAREDFRAG...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ixgbe: fixed the PCI device reference count leak As stated in the comment for pcigetdomainbusandslot, it returns a PCI device with the reference count incremented. When using this device, the caller must decrement the referenc...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fixed the UAF issue related to GEM handle creation. The user space may attempt to guess the handle value and race the GEM object creation with the handle being closed. This can lead to a use-after-free scenario if we...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: fixed a use-after-free in nfregisternethook. We must not dereference @newhooks after the nfhookmutex has been released, because other threads may have already freed the allocated hooks. BUG: KASAN: use-after-free in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/smc: fixed the connection leak issue. There is a potential leak issue under the following execution sequence: smcrelease, smcconnectwork if sk-skstate == SMCINIT sendclcconfirim tcpabort; ... sk-skstate = SMCACTIVE...

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

In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fixed a use-after-free issue related to the destruction of CM IDs. The function iwconnreqhandler associates a new struct rdmaidprivate named connid with an existing struct iwcmid named cmid as follows: c connid-cmid.iw...

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

In the Linux kernel, the following vulnerabilities have been resolved: scsi: qla2xxx: Correctly validates nvmelocalport The driver load failed with the following error message: qla2xxx 0000:04:00.0-ffff:0: registerlocalport failed: ret=ffffffef There was also a kernel crash: BUG: Unable to handle...

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

In the Linux kernel, the following vulnerabilities have been resolved: scsi: qla2xxx: Fix for possible memory corruption. The Init Control Block is being referenced incorrectly. It should be referenced correctly...

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

In the Linux kernel, the following vulnerabilities have been resolved: scsi: qla2xxx: During vport deletion, an explicit async logout operation is required. During vport deletion, it was observed that an crash occurred due to stale entries in the outstanding command array. For all these stale I/O...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Thermal: int340x: fixed a memory leak in int3400notify The following memory leaks are likely to occur on my TigerLake platform: Unreferenced object: 0xffff927c8b91dbc0 size 32 Details: comm “kworker/0:2”, pid 112, jiffies...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Thermal: Core – Fix for NULL pointer dereferencing in TZGETTRIP. Do not call gettriphyst from thermalgenlcmdtzgettrip if the thermal zone does not define such a function...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: A infinite loop occurs when replaying fastcommit. When performing a fastcommit replay, an infinite loop may occur due to an uninitialized extentstatus structure. The ext4extdetermineinserthole function does not detect this...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/uv: Do not call foliowaitwriteback without a folio reference. foliowaitwriteback requires that no spinlocks are held and that a folio reference is held, as documented. After we removed the PTL, the folio object could be free...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables – A memory leak occurred during the stateful object update. Stateful objects can be updated from the control plane. The transaction logic allocates a temporary object for this purpose. The -init function wa...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: perf: Fixed event leakage upon execution and file release The pending task work related to perf is never waited for when a matching event occurs. In the case of a child event released directly via freeevent, this can potential...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: iouring: Lock overflow for IOPOLL. syzbot reports an issue with overflow during IOPOLL operations: WARNING: CPU: 0 PID: 28; at iouring, iouring.c:734; function iocqringeventoverflow+0x1c0/0x230; function iouring, iouring.c:734...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fixed a possible NULL pointer dereferencing in sndusbpcmhasfixedrate. The argument of the subs function may be NULL; therefore, do not use it before a NULL check...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: PCI: Endpoint: Fixed error handling in vpciscanbus Smatch complains about inconsistent NULL checking in vpciscanbus: drivers/pci/endpoint/functions/pci-epf-vntb.c:1024 vpciscanbus error: We previously assumed that ‘vpcibus’ could...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hciqca: Fixed the driver shutdown when the serdev is closed. The driver shutdown callback which sends EDLSOCRESET to the device via serdev should not be invoked when the HCI device is not open e.g., if hcidevopensyn...

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

In the Linux kernel, the following vulnerability has been resolved: exec: Fix for the issue involving the comparison between permission checks and setuid/gid usage When opening a file for execution using dofilpopen, permission checks are performed based on the file’s metadata at that moment. If t...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: The probe fails when the workqueue cannot be enabled The workqueue is enabled when the appropriate driver is loaded, and disabled when the driver is removed. When the driver is removed, it assumes that the...

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 in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Do not change route.addr.srcaddr outside of state checks. If the state is not idle, resolvepreparesrc should immediately fail, and no changes to the global state should occur. However, it srcaddr by attempting to create...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: rndis: added a spinlock for the rndis response list There is no lock for the rndis response list. This could lead to list corruption if two different listadd operations occur simultaneously, as described below. It’s...

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

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: initialize extack before use. This fix addresses the issue of missing initialization of extack in flow offload...

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

In the Linux kernel, the following vulnerabilities have been resolved: ext4: fixed an issue where the buffer of extents was freed twice. In ext4exttrytomergeup, the path1.pbh was set to NULL after it was released. Otherwise, it might be released twice. An example of what triggers this is as...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Added a null check for the ‘afb’ variable in the amdgpudmplanehandlecursorupdate function v2. This commit incorporates a null check for the ‘afb’ variable within the amdgpudmplanehandlecursorupdate function...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: drm/amd/display: Check null-initialized variables WHAT & HOW drrtiming and subvppipe are initialized to null, and they are not always assigned new values. It is necessary to check for null before dereferencing these variables...

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

In the Linux kernel, the following vulnerabilities have been resolved: TCP: The check skb variable is not NULL in tcprtodeltaus. We have some machines running stock Ubuntu 20.04.6; these machines use the 5.4.0-174-generic kernel and run Ceph. Recently, a NULL pointer dereference occurred in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: scsi: sd: A “off-by-one” error has been fixed in sdreadBlockcharacteristics. If the device returns page 0xb1 with a length of 8 this occurs with QEMU v2.x, for example, sdReadBlockCharacteristics may attempt an out-of-bounds...

Astra Linux – Vulnerability in OpenSSL

Issue summary: Use of the low-level GF2^m elliptic curve APIs with untrusted explicit values for the field polynomial can lead to out-of-bounds memory reads or writes. Impact summary: Out-of-bound memory writes can cause the application to crash or even lead to remote code execution. However, in...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: PCI: Keystone: Fixed the if-statement expression in kspciequirk. This code accidentally used && where || was intended. This could potentially lead to a NULL derefrence error. Therefore, the if-statement expression should be...

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

In the Linux kernel, the following vulnerability has been resolved: nilfs2: A potential out-of-band OOB read issue has been fixed in nilfsbtreecheckdelete. The function nilfsbtreecheckdelete checks whether degeneration to direct mapping occurs before deleting a b-tree entry. This can lead to memo...

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

In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Added a NULL check for the lookupatid function. The lookupatid function may return NULL if the ATID is invalid or does not exist in the identifier table. This could lead to dereferencing a null pointer without any...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Avoid use-after-free in ext4extshowleaf In ext4findextent, the path may be freed by an error or reallocated. Therefore, using a previously saved ppath may have already been freed, thereby potentially causing a use-after-fre...

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

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Use two-phase skb reclamation in ieee80211dostop Since 'devqueuexmit' should be called with interrupts enabled, the following backtrace is shown: ieee80211dostop … spinlockirqsave&local-queuestopreasonlock, flags ...

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

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Always wait for both attempts at firmware loading. In rtwwaitfirmwarecompletion, always wait for both regular and wowlan firmware loading attempts. Otherwise, if rtwusbintfinit fails in rtwusbprobe, rtwusbdisconnect...

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

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fixed the potential NULL pointer dereferencing in nilfsbtreeinsert The patch series “nilfs2: fixes potential issues with empty B-tree nodes” addresses three potential issues with empty B-tree nodes that can occur with...

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

In the Linux kernel, the following vulnerability has been resolved: ocfs2: A potential NULL pointer dereferencing has been fixed in ocfs2setbufferuptodate. During cleanup, if flags do not include OCFS2BHREADAHEAD, it may trigger a NULL pointer dereferencing in the ocfs2setbufferuptodate function,...

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

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: A null check was added for toppipetoprogram in the commitplanesforstream function. This fix addresses a null pointer dereferencing issue in the commitplanesforstream function at line 4140. The issue could occur...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: A null check has been added for the function pointer in dcn32setoutputtransferfunc. This commit adds a null check for the setoutputgamma function pointer in the dcn32setoutputtransferfunc function. Previously,...

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

In the Linux kernel, the following vulnerability has been resolved: padata: Use integer wrap-around to prevent deadlock in cases of seqnr overflow. When submitting more than 2^32 padata objects to padatadoserial, the current sorting implementation incorrectly sorts padata objects with overflowed...

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

In the Linux kernel, the following vulnerabilities have been resolved: firmwareloader: Block path traversal Most firmware names are hardcoded strings, or are constructed from fairly constrained format strings where the dynamic parts are just some hexadecimal numbers or similar elements. However,...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: In the bcm module, there was a issue where bo-bcmprocread was still triggered after the removeprocentry function was called. The syzbot tool reported a warning in the bcmrelease function. The fix addressed another warning that...