Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: hibmcge: fixed the RTNL deadlock issue Currently, the hibmcge netdev acquires the RTNL lock in pcierrorhandlers.resetprepare and releases it in pcierrorhandlers.resetdone. However, in the PCI framework: pciresetbus -...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: rejecting negative ifindex values Recent changes in net-next commit 759ab1edb56c reorganized the handling of pre-assigned ifindex values. This led to a latent issue in ovs. ovs does not validate ifindex values,...

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

In the Linux kernel, the following vulnerabilities have been resolved: tipc: Changed the nlapolicy for bearer-related names to NLANULSTRING. The syzbot reported the following uninit-value access issues 1: ===================================================== BUG: KMSAN: uninit-value in strlen...

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

In the Linux kernel, the following vulnerabilities have been resolved: netlink: Fixed an issue where the kernel could be exposed after free operation in skbdatagramiter. The syzbot reported the following issue with uninitialized value access 1: The netlinktofullskb function creates a new skb and...

Astra Linux – Vulnerability in Linux 5.10, Linux

A issue was discovered in the Linux kernel before version 6.0.11. Missing offset validation in the drivers/net/wireless/microchip/wilc1000/hif.c file, within the WILC1000 wireless driver, can lead to an out-of-bounds read when parsing a Robust Security Network RSN information element from a Netli...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: afnetlink: Fixed an out-of-bounds shift in the group mask calculation When a netlink message is received, netlinkrecvmsg fills in the address of the sender. One of the fields is the 32-bit bitfield nlgroups, which carries the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mptcp: never allow the PM to close a listener subflow Currently, when deleting an endpoint, the netlink PM traverses all local MPTCP sockets, regardless of their status. If an MPTCP listener socket is bound to the IP correspondin...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmpls: Fixed the warning during failed attribute validation The 'TCAMPLSLABEL' attribute is of 'NLAU32' type, but has a validation type of 'NLAVALIDATEFUNCTION'. This is an invalid combination according to the commen...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nfc: fixed a segfault in nfcgenldumpdevicesdone When kmalloc in nfcgenldumpdevices fails, nfcgenldumpdevicesdone causes a segfault as follows: KASAN: null-ptr-deref in range 0x0000000000000008-0x000000000000000f CPU: 0 PID: 25...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: vdpa: Added the featuresattr attribute to vdpanlpolicy for checking the nlattr length. The vdpanlpolicy structure is used to validate the nlattr when parsing incoming nlmsg. It ensures that the described attribute produces a vali...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: core: A NULL dereference was prevented in generichwtstampioctllower. The ethtool tsconfig Netlink path can trigger a null pointer dereference. A call chain such as: tsconfigpreparedata - devgethwtstampphylib - vlanhwtstampge...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: netlink: prevents potential Spectre v1 exploits Most netlink attributes are parsed and validated via nlavalidateparse or validatenla. c u16 type = nlatypenla; if type == 0 || type maxtype / Error or continue / The @type value is...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: tipc: The issue in tipcnlcompatnametabledumpheader regarding the check of the msg-req TLV length was fixed. This is a follow-up to commit 974cb0e3e7c9 “tipc: fixing uninit-value in tipcnlcompatnametabledump", where a type cast fr...

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: net/smc: Reduced Rtnl pressure in smcpnetcreatepnetidslist. Many syzbot reports indicate extreme Rtnl pressure, and many of them suggest that smc acquires Rtnl during the creation of netnames without any valid reason 1. This patc...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cfg80211: fixed a race condition in the netlink owner interface destruction process. My previous fix to address this issue created a deadlock situation, and there was a race condition where the exact same deadlock could occur...

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

In the Linux kernel, the following vulnerabilities have been resolved: gtp: Fixed use-after-free and null-ptr-deref issues in gtpgenldumppdp. The gtpnetops pernet operations structure for the subsystem must be registered before registering the generic netlink family. Syzkaller encountered a...

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

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: sr – fixed possible use-after-free and nullptrderef issues. The pernet operations structure for the subsystem must be registered before registering the generic netlink family...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nfc: fixed the potential NULL pointer dereference in nfcgenldumpsesdone. The done netlink callback nfcgenldumpsesdone should check whether the received argument is non-NULL, because its allocation might fail earlier in dumpit...

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

In the Linux kernel, the following vulnerability has been resolved: net/smc: Fixed an illegal access to rmbdesc during SMC-D connection dumping. A crash was detected when dumping SMC-D connections. This issue can be reproduced by performing the following steps: 1. Run the nginx/wrk test: smcrun...