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

In the Linux kernel, the following vulnerability has been resolved: arm64: ptrace: Fixed the issue of partial SETREGSET for NTARMTAGGEDADDRCTRL. Currently, the taggedaddrctrlset function does not initialize the temporary “ctrl” variable. A SETREGSET call with a length of zero will leave this...

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: bpf: Fixed the WARN function in getbpfrawtp regs. syzkaller reported an issue: WARNING: CPU: 3 PID: 5971 at kernel/trace/bpftrace.c:1861 getbpfrawtp regs+0xa4/0x100 kernel/trace/bpftrace.c:1861 Modules linked in: CPU: 3 UID: 0...

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

In the Linux kernel, the following vulnerability has been resolved: Tracing: Do not register unsupported perf events Synthetic events currently do not have a function to register perf events. This leads to calling the tracepoint register functions with a NULL function pointer, which triggers the...

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: rcu-tasks: Fixed the buffer overflow in showrcutasksTracegpkthread. There is a possibility of buffer overflow in showrcutasksTracegpkthread if the counters passed to sprintf are very large. The counter values used for this functi...

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: Tracing: Fixed a use-after-free in printgraphfunctionflags during tracer switching. Kairui reported a Use-After-Free issue in printgraphfunctionflags during ftrace stress testing 1. This issue can be reproduced by putting a...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: spmi: In the tracing functions, there was an issue where access occurred beyond the bounds of the buffer. This issue was fixed by using the length “len” instead of “len + 1”. The following is a KASAN log showing the issue: BUG: I...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: The length check that causes memory corruption was corrected. We have experienced severe kernel crashes due to memory corruption in our production environment. For example: Call Trace: 1640542.554277 General protectio...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Tracing/histograms: Fixed the memory leak issue. This issue was fixed in commit 46bbe5c671e06f070428b9be142cc4ee5cedebac. As mentioned in commit 46bbe5c671e0 “Tracing: fixing double-free”, the “double-free” problem reported by th...

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

In the Linux kernel, the following vulnerability has been resolved: Tracing: Fixed a race condition between CPU buffer write and swapping. A warning occurred in rbendcommit at the following line of code: if RBWARNONcpubuffer, !localread&cpubuffer-committing WARNING: CPU: 0 PID: 139 at...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Tracing: Fixed wild-memory-access in registersynthevent. In registersynthevent, if setsyntheventprintfmt fails, then both traceremoveeventcall and unregisterTraceEvent will be called. This means that traceeventcall will call...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Tracing: kprobe: Fixed a potential null-ptr-dereference in tracearray in kprobeeventgentestexit When testgenkprobecmd fails after kprobeeventgencmdend, it will go to delete, which will call kprobeeventdelete and release the...

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

In the Linux kernel, the following vulnerabilities have been resolved: tcp/dccp: Do not use timerpending in reqskqueueunlink. Martin KaFai Lau reported a use-after-free in reqsktimerhandler. We are encountering a use-after-free related to a bpf program attached to tracetcpretransmitsynack. The...

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

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Disabling Intel PT virtualization guest/host mode is enabled by default under CONFIGBROKEN. This means that KVM’s ptmode module parameter is set to BROKEN by default, thereby disabling support for virtualizing Intel PT...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: Fixed an issue where corrupted data was written to the “bad” hist list, potentially affecting named triggers. The following commands cause a crash: cd /sys/kernel/tracing/events/rcu/rcucallback echo...

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

In the Linux kernel, the following vulnerability has been resolved: Tracing: Add downwritetraceeventsem when adding a trace event. When a module is loaded, it adds trace events defined by that module. It may also be necessary to modify the module’s trace printk formats by replacing enum names wit...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Tracing/histogram: Fixed a potential memory leak in kstrdup. The kfree function is not called in the error path, resulting in the memory allocated by kstrdup not being freed properly. p = param = kstrdupdata-paramsi, GFPKERNEL...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Tracing: Verify event formats that use "%p.." syntax. The trace event verifier checks the formats of trace events to ensure that they do not reference memory that is not part of the event itself, or data that will never be freed...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: A silence warning is issued when chunk allocation fails in tracepidwrite. Syzkaller triggers a fault injection warning: WARNING: CPU: 1 PID: 12326 at tracepointaddfunc+0xbfc/0xeb0 Modules linked in: CPU: 1 UID: 0 PID:...

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: btrfs: corrected the order of the prelimref arguments in btrfsprelimref The btrfsprelimref function calls the old and new reference variables in the incorrect order. This causes a NULL pointer dereference because oldref is...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Ring Buffer: Do not swap the cpubuffer during the resize process When the ringbufferswapcpu function is called during the resize process, the cpu buffer is swapped in the middle, resulting in an incorrect state. Continuing to run...