Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939netdevstart: fixed a UAF Use-After-Free condition related to rxkref of j1939priv. This issue would trigger a UAF for rxkref of j1939priv as follows: cpu0 cpu1 j1939skBindsocket0, ndev0, … j1939netdevStart...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: iavf: Use internal state to free traffic IRQs If the system attempts to close the netdev while iavfresettask is running, the LINKSTATESTART field will be cleared, and netifrunning will return false in iavfreinitinterruptscheme. A...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RDMA/ionic: Fixed a potential NULL pointer dereferencing in ionicqueryport. The function ionicqueryport calls ibdevicegetnetdev without checking the return value, which could lead to NULL pointer dereferencing. This issue has bee...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Take the RTNL lock when necessary before calling xdpsetfeatures. The RTNL lock should be held when calling xdpsetfeatures with a registered netdev, as this call triggers the netdev notifiers. This could occur, for...

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, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: s390/lcs: The return type of lcsstartxmit has been corrected. With Clang’s Kernel Control Flow Integrity kCFI, CONFIGCFICLANG, indirect call targets are validated against the expected function pointer prototype to ensure that the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: mhi: Fixed a memory leak in mhinetdellink. The MHI driver registers the network device without setting the needsfreenetdev flag, and does not call freenetdev when unregistering the network device. This results in a memory...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: wwan: iosm: A memory leak has been fixed in ipcwwandellink. The IOSM driver registers a network device without setting the needsfreenetdev flag. Additionally, it does not call freenetdev when unregistering the network device...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Wifi: rtw89: Fixed a potential race condition between napiinit and napienable. A race condition can occur if netdev is registered, but NAPI is not initialized yet. Meanwhile, the user space starts the netdev that will enable...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: The hooks related to netdev are always released after the notifier is removed. This resolves the issue where, when a veth device is released, the veth release callback also queues the peer netns device for...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: shaper: Protection is added for late read accesses to the hierarchy. We retrieve a netdev during the preparation of Netlink operations pre-callbacks, and then we acquire a reference to it. Later, within the body of the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Staging: rtl8712: fixed a use-after-free in rtl8712dlfw Syzbot reported a use-after-free in rtl8712dlfw. The issue occurred due to a race condition between r871xudevremove and dondoopen callbacks. It’s clear from the crash log...

Astra Linux – Vulnerability in Linux, Linux 5.10

The file net/netfilter/nfdupnetdev.c in the Linux kernel versions 5.4 through 5.6.10 allows local users to gain privileges due to a heap-out-of-bounds write. This issue is related to the nftablesoffload mechanism...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iavf: Remove the “crit lock” mechanism. This removal frees us from the error-prone logic associated with trylocks. Thanks to netdevlock by Jakub, this has become easier to implement. In most cases, we were already protected by th...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In usbnet, there was a flaw where unregisternetdev was called before unbind. The commit with the commit ID 2c9d6c2b871d “usbnet: run unbind before unregisternetdev” was intended to fix a use-after-free issue when disconnecting US...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: hamradio: Fixed a memory leak in mkissclose. My local syzbot instance encountered a memory leak in mkissopen1. The issue arose from the missing freenetdev call in mkissclose. In mkissopen, netdevice is allocated and then...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the hsofreenetdevice function in drivers/net/usb/hso.c calls unregisternetdev from version 5.13.4 onwards, without checking the NETREGREGISTERED status. This leads to a use-after-free and a double-free...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: can: gsusb: gsusbreceivebulkcallback: fixed the error message. Since committing the patch 79a6d1bfe114 “can: gsusb: gsusbreceivebulkcallback: error in usbsubmiturb, a failed resubmit URB will print an information message”, a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: Fix for duplicate devices in netdev hooks When handling NETDEVREGISTER notifications, duplicate device registrations must be avoided, as the device might have been added by nftnetdevhookalloc during the...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Net: FDDI – Fixed a UAF Use-after-Free issue in fzaprobe. “FP” is netdev private data, and it cannot be used after the freenetdev call. Using “FP” after freenetdev can cause a UAF bug. This issue was fixed by moving the freenetde...