CVE-2026-53304

Summary (CVE-2026-53304): In the Linux kernel, the SCSI generic driver (sg) could incur a soft lockup when opening /dev/sgX due to an overridable def_reserved_size parameter. The value can bypass sg_proc_write_dressz validation if set via the module parameter, triggering a watchdog soft lockup (o...

EUVD-2026-39839

In the Linux kernel, the following vulnerability has been resolved: scsi: sg: Resolve soft lockup issue when opening /dev/sgX The parameter defreservedsize defines the default buffer size reserved for each Sgfd and should be restricted to a range between 0 and 1,048,576 see...

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

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: avoiding soft lockup when using mprotect on a large memory area When calling mprotect on a large hugetlb memory area in our customer’s workload 300GB of hugetlb memory, soft lockup was observed: watchdog: BUG: soft...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: bridge: Fixed a soft lockup issue in brmulticastqueryexpired. When setting multicastqueryinterval to a large value, the local variable time in brmulticastsendquery may overflow. If the time is less than a few milliseconds, t...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: add a force flush to delay work when radeon Although radeon card fence and wait for gpu to finish processing current batch rings, there is still a corner case that radeon lockup work queue may not be fully flushed, an...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: xfrm: Reinjecting transport-mode packets through the workqueue. The following warning is displayed when the tcp6-multi-diffip11 stress test case of the LTP test suite is tested: watchdog: BUG: Soft lockup – CPU0 stuck for 22...

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

In the Linux kernel, the following vulnerability has been resolved: Audit: Fixed a possible soft lockup in audit inode child. Tracefs or debugfs might cause hundreds to thousands of PATH records. Too many PATH records might lead to a soft lockup. For example: 1. CONFIGKASAN=y && CONFIGPREEMPTION=...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/ast: Fixed soft lockup issues. There is a while-loop in astdpsetonoff, which could lead to an infinite loop. This is because the register VGACRI-Dx checked in this API is actually a scratch register controlled by an MCU, name...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Move the cfglogverbose check before calling lpfcdmpdbg In an attempt to log message 0126 using LOGTRACEEVENT, the following hard lockup occurred, causing the system to hang. Call Trace: rawspinlockirqsave+0x32/0x40...

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

In the Linux kernel, the following vulnerability has been resolved: RDMA/mad: Improved handling of time-out WRs for mad agents. The current timeout handler for mad agents acquires/releases the madagentpriv lock for every time-out WR. This causes heavy locking contention when multiple WRs need to ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fixed a situation where a hard lockup occurs in the virtual machine after prolonged inactivity, due to the periodic HV timer. When advancing the expiration of the guest’s APIC timer in periodic mode, set the expiration ...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: tty: ttybuffer: Fixed the soft lockup issue in flushtoldisc. When running the ltp testcase ltp/testcases/kernel/pty/pty04.c with arm64, there is a soft lockup. The detailed call trace is as follows: Workqueue: eventsunbound →...

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

In the Linux kernel, the following vulnerability has been resolved: USB: class: cdc-wdm: Fixed the CPU lockup caused by excessive log messages. The syzbot fuzzer found that the interrupt-URB completion callback in the cdc-wdm driver took too long. The driver’s immediate resubmission of interrupts...

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

In the Linux kernel, the following vulnerabilities have been resolved: jbd2: Prevent softlockup in jbd2logdocheckpoint. Both jbd2logdocheckpoint and jbd2journalshrinkcheckpointlist periodically release the jlistlock after processing a batch of buffers to avoid long hold times on the jlistlock...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Fixed the jump offset calculation in tailcall. The additional call to bpfintjitcompile skips the JIT context initialization. This effectively skips the offset calculation, resulting in outoffset = -1. Therefore, t...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ftrace: The soft lockup issue in ftracemoduleenable has been fixed. A soft lockup was observed when loading the amdgpu module. If a module contains many functions that can be traced, multiple calls to kallsymslookup may take too...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fixed a hard lockup issue when reading the rxmonitor from debugfs. During I/O operations and simultaneous reads of /sys/kernel/debug/lpfc/fnX/rxmonitor, a hard lockup similar to the call trace below may occur. The...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: iommu/arm-smmu-v3: Fixed the soft lockup triggered by armsmmumminvalidaterange. When running an SVA case, the following soft lockup is triggered: -------------------------------------------------------------------- watchdog:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: Restricted conditions were added for adding duplicate netems into a qdisc tree. The duplication prevention logic of netemenqueue breaks when a netem resides in a qdisc tree along with other netems. This can lead to ...

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

In the Linux kernel, the following vulnerabilities have been resolved: Wifi: cfg80211: Values of NL80211ATTRTXQQUANTUM are restricted. syzbot can trigger soft lockups by setting NL80211ATTRTXQQUANTUM to 2^31. We had a similar issue in schfq, which was fixed in the commit d9e15a273306 „pktsched: f...