Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: TCP: Fixed a data race around the sysctltcpprobeinterval variable. When reading sysctltcpprobeinterval, it can be changed concurrently. Therefore, we need to add READONCE to its reader function...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: netlink: Annotate lockless accesses to nlk-maxrecvmsglen. syzbot reported a data race in netlinkrecvmsg. Indeed, netlinkrecvmsg can be executed concurrently, and netlinkdump also requires protection. 1 Bug: KCSAN: Data race in...

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

In the Linux kernel, the following vulnerability has been resolved: netpoll: A race condition in netpollowneractive has been fixed. KCSAN detected a race condition in netpoll: - BUG: KCSAN: A data race occurs in netrxaction/netpollsendskb. A write operation marked as 0xffff8881164168b0, 4 bytes i...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ICMP: Fixed a data race around sysctlicmperrorsuseinboundifaddr. When reading sysctlicmperrorsuseinboundifaddr, it can be changed concurrently. Therefore, we need to add READONCE to its reader function...

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: bpf: Address the issue reported by KCSAN regarding bpflrulist. KCSAN reported a data-race when accessing node-ref. Although node-ref doesn’t need to be accurate, this opportunity can be used to use a more common READONCE and...

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: Packet: Annotate data-races around ignoreoutgoing ignoreoutgoing is accessed without a lock from devqueuexmitnit and packetgetsockopt. Add appropriate READONCE/WRITEONCE annotations. Syzbot reported: BUG: KCSAN: Data-race in...

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

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fixed a potential data race in the PCM memory allocation helpers The PCM memory allocation helpers include a sanity check to prevent too many buffer allocations. However, this check is performed without proper locking,...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: List: Fixed a data race around ep-rdllist. The eppoll function first calls epeventsavailable without holding a lock and checks if ep-rdllist is empty using listemptycareful, which reads from rdllist-prev. Therefore, all access...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ip: Fixed a data race around the sysctlfwmarkreflect function. When reading sysctlfwmarkreflect, it can be changed concurrently. Therefore, we need to add READONCE to its reader function...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ip: Fixed data races related to sysctlipfwdupdatepriority. When reading sysctlipfwdupdatepriority, it can be changed concurrently. Therefore, we need to add READONCE to its readers...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: sysctl: Fixed data races in procdou8vecminmax. A sysctl variable is accessed concurrently, and there is always a chance of data races occurring. Therefore, both readers and writers need some basic protection to avoid load/store...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: TCP: Fixed a data race around sysctltcpmtuprobefloor. When reading sysctltcpmtuprobefloor, it can be changed concurrently. Therefore, we need to add READONCE to its reader...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/irdma: Fixed a data race on CQP completion statistics. CQP completion statistics is locked when used in irdmawaitevent and irdmacheckcqpprogress. However, it can also be updated in the completion thread irdmascccqgetcqein...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/irdma: Fixed a data race on the CQP request done field. KCSAN detected a data race in the cqprequest-requestdone memory location. This location is accessed without a lock in the irdmahandlecqpop function, while it was bei...

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: Fixed a data race on lastboostedvcpu in kvmvcpuonspin. Used READ,WRITEONCE to access kvm-lastboostedvcpu to ensure that reads and writes are atomic. In the extremely unlikely scenario where the compiler introduces errors in...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ICMP: Fixed data races related to sysctlicmpechoenableprobe. When reading sysctlicmpechoenableprobe, it can be changed concurrently. Therefore, we need to add READONCE to its readers...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: afunix: Fixed a data race in unixdgrampeerwakeme. In unixdgrampoll, unixdgrampeerwakeme is called without ensuring that the other lock is held, and there is no check to see if its receive queue is full. In this case, we need t...

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: afunix: Fixed data races related to user-unixinflight. user-unixinflight is updated under spinlockunixgclock, but toomanyunixfds accesses it without locking. Let’s annotate the write/read accesses to user-unixinflight. BUG:...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bonding: Annotate the data races around slave-lastrx. slave-lastrx and slave-targetlastarprx... can be read and written without locking. Add READONCE and WRITEONCE annotations. syzbot reported: BUG: KCSAN: Data race in...

CVE-2026-74690

In the Linux kernel, the following vulnerability has been resolved: s390/ism: Fix UAF of sba and ieq during ismdevexit A ism interrupt handler can be active in parallel with ismdevexit, accessing freed data structures. No new interrupts will be generated after unregisterieq. Drain ongoing interru...