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

In the Linux kernel, the following vulnerability has been resolved: can: j1939: prevents deadlock by changing j1939sockslock to rwlock. The following 3 locks may race against each other, causing a deadlock situation in the Syzbot bug report: - j1939sockslock - activesessionlistlock -...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fixed the issue where GEM handle creation was subject to ref counting. Previously, panfrostgemcreatewithhandle would return a BO, but only with a reference to the handle. User space could theoretically guess this...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Thunderbolt: Fixed a use-after-free in tbdpdprxwork. The original code relied on canceldelayedwork in tbdpdprxstop, which does not ensure that the delayed work item tunnel-dprxwork has fully completed if it was already running...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: can: j1939: fixed Use-after-Free, failed to increment the ref count of the skb while it was in use. This patch addresses a Use-after-Free issue identified by the syzbot. The problem arises when a skb is taken from the per-session...

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

In the Linux kernel, the following vulnerabilities have been resolved: TLS: Fixed a race condition between the async notify and socket close operations. The thread that submitted the request the one that called recvmsg/sendmsg may exit as soon as the async crypto handler’s complete function is...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: phy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered The powersupply framework is not actually designed to have long-term references to powersupply devices in the kernel. Specifically, unregistering a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Implement a reference counter for SRB The timeout handler and the done function are competing with each other. When qla2x00asynciocbtimeout starts to execute, it may be preempted by the normal response path via the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: smb: server: The use of smbdirectsocketrecvio.credits.available has been removed. The logic for managing recv credits by counting posted recvio and granted credits is flawed. This is because the peer might have already consumed a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: k3-udma-glue: Fix for ofk3udmaglueParsechnbyid The ofk3udmaglueParsechnbyid helper function erroneously invokes “ofnodeput” on the “udmaxnp” device node that was passed to it. Additionally, its reference count was...

Astra Linux – Vulnerability in Firefox and Thunderbird

Race conditions in reference counting code were identified through code analysis. These conditions could lead to exploitable use-after-free vulnerabilities. This vulnerability affects Firefox 116, Firefox ESR 102.14, and Firefox ESR 115.1...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cachefiles: corrected the incorrect dentry reference count in cachefilescull. The patch mentioned below changed cachefilesburyobject to expect two references to the ‘rep’ dentry. Three of the caller functions were changed to use...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net/mlx5e: RX, Fixed XDP multi-buf fragment counting for legacy RQ XDP multi-buf programs can modify the layout of the XDP buffer when the program calls bpfxdppulldata or bpfxdpadjusttail. The referenced commit in the fixes ta...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: mmc: sdhci-pci: A possible memory leak caused by the absence of pcidevput has been fixed. pcigetdevice will increase the reference count of the returned pcidev. We need to use pcidev PUT to decrease the reference count before...

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

In the Linux kernel, the following vulnerabilities have been resolved: s390/zcrypt: fixed reference counting on zcrypt card objects Tests with hot-plugging crypto cards on KVM guests with a debug kernel build revealed an use-after-free for the load field of the struct zcryptcard. The reason was...

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

In the Linux kernel, the following vulnerability has been resolved: smb: Client side – fixed a potential deadlock that could occur when releasing mids. All callers of releasemid seem to hold a reference to @mid. Therefore, there is no need to call krefput&mid-refcount, releasemid under...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: spi: tegra20-slink: Fixed a UAF Use-after-Allocation issue in tegraslinkremove. After calling spiunregistermaster, the refcount of the master will be decreased to 0, and it will be freed in spicontrollerrelease. The device data...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: smb: Client: Fixed issue where reference counting of @ses was missed. Use the new cifssmbsesincrefcount helper function to obtain an active reference to @ses and @ses-dfsrootses if set. This will prevent @ses-dfsrootses from...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix the reference leak The commit 20d72b00ca81 “netfs: Fix the request’s work item to not require a ref” modifies the netfsallocrequest function to initialize the reference counter to 2 instead of 1. The rationale is that...

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

In the Linux kernel, the following vulnerability has been resolved: i2c: sprd: fixed a reference leak when pmruntimegetsync fails. The PM reference count is not expected to be incremented upon returning from sprdi2cmasterxfer and sprdi2cremove. However, pmruntimegetsync will still increment the P...