Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: ca8210: Stop leaking the skb structure. Upon an error, the ieee802154xmitcomplete helper function is not called. Only ieee802154wakequeue is called manually. As a result, the skb structure is leaked. Lease the sk...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: atl1c: Workaround for the DMA RX overflow issue. This work is based on the alx driver commit 881d0327db37 “net: alx: Workaround for the DMA RX overflow issue”. The alx and atl1c drivers both had RX overflow errors; therefore, ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net: hsr: Avoid possible NULL dereference in skbclone. syzbot encountered a crash 1 in skbclone, caused by a bug in hsrgetuntaggedframe. When/if createstrippedskbhsr returns NULL, we must not attempt to call skbclone...

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

In the Linux kernel, the following vulnerabilities have been resolved: net: prevented skb corruption during frag list segmentation. Ian reported several instances of skb corruption triggered by rx-gro-list, resulting in similar errors: 62.624003 BUG: kernel NULL pointer dereference, address:...

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

In the Linux kernel, the following vulnerability has been resolved: net: nsh: Use the correct macoffset to unwind gso skb in nshgsoSegment. As shown in the call trace, the skbpanic error occurred due to an incorrect skb-macheader in nshgsoSegment. Invalid opcode: 0000 1 PREEMPT SMP KASAN PTI CPU:...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ppp: Associating skb with a device at tx. Syzkaller triggered a flow dissector warning with the following code: c r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e,...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: Fixed an access bug involving an uninitialized variable in ip6makeskb. Syzbot reported the following bugs: ===================================================== BUG: KMSAN: uninit-value in archatomic64inc...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Wifi: ath9k: htchst: In the ath9khtcrxmsg function, if there is no callback function, the provided skb is not freed. It is stated that ath9khtcrxmsg either frees the provided skb or passes its management to another callback...

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

In the Linux kernel, the following vulnerabilities have been resolved: Wifi: ath9k: hifusb: Fixed a memory leak related to remainskbs. The hifdev-remainskb is allocated and used exclusively in ath9khifusbrxstream. It is implied that an allocated remainskb is processed and then freed in error-pron...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ntbnetdev: Use devkfreeskbany in interrupt context. TX/RX callback handlers ntbnetdevtxhandler, ntbnetdevrxhandler can be called in interrupt context via the DMA framework after the respective DMA operations are completed...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nfqueue – fixed a possible use-after-free issue. Eric Dumazet says: The sockhold function seems suspicious, as there is no guarantee that skrefcnt is not already 0. If this occurs, we cannot queue the packet and mus...

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

In the Linux kernel, the following vulnerability has been resolved: Wifi: ath9k: hifusb: Clean up skbs if ath9khifusbrxstream fails Syzkaller detected a memory leak of skbs in ath9khifusbrxstream. While processing skbs in ath9khifusbrxstream, the already allocated skbs in skbpool are not freed if...

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: ip6mr: Fixed skbunderpanic in ip6mrcachereport. skbuff: skbunderpanic: Text: fffffffff88771f69; Len: 56; Put: -4; Head: ffffff88c5f86a800; Data: fffff887f5f86a850; Tail: 0x88; End: 0x2c0; Device: pim6reg. ----------- Cut here...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Wifi: iwlwifi: mei: fix potential NULL-ptr dereference after clone If cloning an SKB object fails, do not attempt to use it. Instead, return an error code as if you are passing it along. Coverity CID: 1503456...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: can: dev: fix skb drop check In commit a6d190f8c767 “can: skb: drop txskb if in listen-only mode”, the priv-ctrlmode element is read even on virtual CAN interfaces that do not create the structcanpriv structure during startup. Th...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: Ethernet:enic: A use-after-free bug has been fixed in enichardstartxmit. In enichardstartxmit, it calls enicqueuewqskb. Inside enicqueuewqskb, if an error occurs, the skb will be freed by devkfreeskbskb. However, the freed skb is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mlx5: Fixed a leak in skb during fifo resync and push operations. During the ptp resync operation, SKBs were popped from the fifo, but they were never freed either by napiconsume or by devkfreeskbany. Added a call to...

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

In the Linux kernel, the following vulnerabilities have been resolved: llc: A test for maclen should be performed before reading the MAC header. The LLC layer reads the MAC header using ethhdr, without verifying that the skb contains an Ethernet header. Syzbot was able to access the llcrcv functi...

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: prevented mss overflow in skbsegment Once again, syzbot is able to cause the kernel to crash in skbSegment. “GSOBYFRAGS” is a forbidden value, but unfortunately, the following calculation in skbSegment can easily result in...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: afunix: Calling kfreeskb for dead unixsk-oobskb in GC. syzbot reported a warning in unixgc, which creates a socketpair and sends the fd of one socket to itself using the peer. socketpairAFUNIX, SOCKSTREAM, 0, 3, 4 = 0 sendmsg4,...