Astra Linux – Vulnerability in Linux 5.10, Linux

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

Astra Linux – Vulnerability in Linux 5.10, Linux

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 – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Packet: Annotate data-races around ignoreoutgoing The function ignoreoutgoing is executed without a read lock, from devqueuexmitnit and packetgetsockopt. Add appropriate READONCE/WRITEONCE annotations. Syzbot reported: BUG: KCSAN...

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...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: bonding: Fixed a use-after-free in bondxmitbroadcast. bondxmitbroadcast reuses the original skb for the last slave determined by bondislastslave and clones it for others. Concurrent slave enslave/release operations may mutat...

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 – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: TCP: Fixed issues related to data races around sysctltcprecovery. When reading sysctltcprecovery, 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 vulnerability has been resolved: ipv4: Fixed a data race related to the sysctlfibsyncmem function. When reading sysctlfibsyncmem, it can be changed concurrently. Therefore, we need to add READONCE to avoid the data race...

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

In the Linux kernel, the following vulnerabilities have been resolved: net: Fixed the issue where load values were being altered in sk-skstamp during sockrecvcmsgs. KCSAN identified a data race in sockrecvcmsgs, where the read access to sk-skstamp requires a READONCE operation. BUG: KCSAN: Data...

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 sysctltcpearlyretrans. When reading sysctltcpearlyretrans, 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: sysctl: Data race issues in procdouintvecminmax have been fixed. A sysctl variable is accessed concurrently, and there is always a risk of data races. Therefore, both readers and writers require some basic protection to avoid dat...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: TCP: Fixed issues related to data races around sysctltcpmaxreordering. When modifying sysctltcpmaxreordering, it’s possible for multiple changes to occur simultaneously. Therefore, we need to add READONCE to its readers...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ip: Fixed a data race related to the sysctlipautobindreuse function. When reading sysctlipautobindreuse, 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: TCP: Fixed issues related to data races around sysctltcpl3mdevaccept. When reading sysctltcpl3mdevaccept, 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 vulnerability has been resolved: TCP: Fixed issues related to data races around sysctltcpfastopen. When reading sysctltcpfastopen, it can be changed concurrently. Therefore, we need to add READONCE to its readers...

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

In the Linux kernel, the following vulnerabilities have been resolved: afunix: Fixed a data race around unixtotinflight. unixtotinflight is updated under spinlockunixgclock, but unixreleasesock reads it without locking. We will use READONCE for unixtotinflight...

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

In the Linux kernel, the following vulnerabilities have been resolved: netlink: Annotate accesses to nlk-cbrunning Both netlinkrecvmsg and netlinknativeseqshow read nlk-cbrunning without locking it. Use READONCE in those functions. Add corresponding WRITEONCE to netlinkdump and netlinkdumpstart...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: nexthop: Fixed issues related to data races around nexthopcompatmode. When reading nexthopcompatmode, 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: IGMP: Fixed data races related to sysctligmpllmreports. When reading sysctligmpllmreports, it can be changed concurrently. Therefore, we need to add READONCE to its readers. This test can be incorporated into a helper function...