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

In the Linux kernel, the following vulnerability has been resolved: media: rc: The bpf attach/detach operation requires write permission. source-iocs-preserved const=CAPNETADMIN...

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: net/sched: actskbmod: prevent kernel-infoleak The syzbot discovered that tcfskbmoddump was copying four bytes from the kernel stack to user space 1. The issue here is that ‘struct tcskbmod’ has a four-byte hole. We need to cle...

Astra Linux – vulnerability in linux-5.10, linux, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: net/netfailover: fix txq exceeding warning The failover txq is initialized as 16 queues. When a packet is transmitted from the failover device for the first time, the failover device will select the queue returned from the primar...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: veth: The GRO flag is cleared when XDP is disabled, even when the device is disabled. The NETIFFGRO flag is set automatically when XDP is enabled, because both features use the same NAPI mechanism. The logic for clearing the...

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

In the Linux kernel, the following vulnerability has been resolved: net/tls: The use-after-free issue in the -EBUSY error handling path of tlsdoencryption has been fixed. The -EBUSY handling in tlsdoencryption, introduced with commit 859054147318 “net: tls: handle backlogging of crypto requests”,...

Astra Linux – Vulnerability in net-snmp

Net-SNMP is an SNMP application library, tools, and daemon. Prior to versions 5.9.5 and 5.10.pre2, a specially crafted packet sent to the net-SNMP snmptrapd daemon could cause a buffer overflow, resulting in the daemon crashing. This issue has been fixed in versions 5.9.5 and 5.10.pre2...

Astra Linux – vulnerability in linux-5.10, linux, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: net: tls: avoid hanging tasks on the txlock SyZBot reported a hang issue; Eric explains that the adversarial receiver may keep RWIN at 0 for a long time, so we cannot guarantee any progress toward resolution. A thread that acquir...

Astra Linux – vulnerability in linux-5.10, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: net: fec: only stop PTP if it was initialized fecptpinit is only called when fep-bufdescex is available. However, fecprobe unconditionally calls fecptpstop on the failedinit path, and fecdrvremove unconditionally calls fecptpstop...

Astra Linux – vulnerability in linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: net: ena: clean up XDP TX queues when regular TX setup fails createqueueswithsizebackoff creates XDP TX queues before setting up the regular TX path. If the subsequent allocation or creation of regular TX queues fails, the error...

Astra Linux - Vulnerability in linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: Fix NULL dereference when deactivating an inactive aggregate in qfqreset qfqclass-leafqdisc-q.qlen 0 does not imply that the class itself is active. Two qfqclass objects may point to the same leafqdisc. This...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In net/sched, there’s an issue where hhfchange function clamps the value of q-quantum before execution, to avoid overflow. The hhfinit function sets q-quantum to pschedmtuqdiscdevsch, without any checks for overflow. A device wit...

Astra Linux – vulnerability in linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: net: bridge: use a stable FDB dst snapshot in RCU readers Local FDB entries can be rewritten in place by fdbdeletelocal, which updates f-dst to another port or to NULL while keeping the entry alive. Several bridge RCU readers...

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: um: net: Do not use drvdata in release. The drvdata is not available in the release version. We should use containerof to obtain the umlnet instance. Otherwise, removing a network device will result in a crash: RIP:...

Astra Linux – vulnerability in linux-5.10, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: tipc: fix use-after-free Read in tipcnamedreinit syzbot found the following issue on: ================================================================== BUG: KASAN: use-after-free in tipcnamedreinit+0x94f/0x9b0...

Astra Linux – Vulnerability in golang-golang-x-net

In net/http in Go, before versions 1.18.6 and 1.19.x, and before version 1.19.1, attackers can cause a denial of service because an HTTP/2 connection may become unresponsive during closure, if the shutdown process is interrupted by a fatal error...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: net:emac/emac-mac: A use-after-free issue was addressed in emacmactxbufsend. In emacmactxbufsend, it calls emactxfilltpd.., skb,... If an error occurs in emactxfilltpd, the skb will be freed via devkfreeskbskb in the error branch...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/smc: Fixed a possible leak of the pernet namespace in smcinit. In smcinit, registerpernetsubsys&smcnetstatops is called without any error handling. If this call fails, the registration of &smcnetops will not be reversed. 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: net/sched: actapi: use RCU with deferred freeing for action lifecycle When NEWTFILTER and DELFILTER are run concurrently, a race condition may occur, potentially leading to errors. Let’s illustrate this with an example where CPU0...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: gso: Fixed a panic that occurred when using a fraglist with mixed head allocation types. Since the commit 3dcbdb134f32 “net: gso: Fixed an error in skbsegment when splitting a gsosize mangled skb having linear-headed...

Astra Linux – vulnerability in linux, linux-5.10, linux-5.15

An issue was found in the Linux kernel up to version 6.0.9. In drivers/media/dvb-core/dvbnet.c, there is a race condition involving .disconnect versus dvbdeviceopen, which can lead to use-after-free...