kernel: proc: fix UAF in proc_get_inode()

In the Linux kernel, the following vulnerability has been resolved: proc: fix UAF in procgetinode Fix race between rmmod and /proc/XXX's inode instantiation. The bug is that pde-procops don't belong to /proc, it belongs to a module, therefore dereferencing it after /proc entry has been registered...

kernel: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al

In the Linux kernel, the following vulnerability has been resolved: proc: use the same treatment to check proclseek as ones for procreaditer et.al Check pde-procops-proclseek directly may cause UAF in rmmod scenario. It's a gap in procregopen after commit 654b33ada4ab"proc: fix UAF in...

kernel: proc: fix UAF in proc_get_inode()

In the Linux kernel, the following vulnerability has been resolved: proc: fix UAF in procgetinode Fix race between rmmod and /proc/XXX's inode instantiation. The bug is that pde-procops don't belong to /proc, it belongs to a module, therefore dereferencing it after /proc entry has been registered...

kernel: proc: fix UAF in proc_get_inode()

In the Linux kernel, the following vulnerability has been resolved: proc: fix UAF in procgetinode Fix race between rmmod and /proc/XXX's inode instantiation. The bug is that pde-procops don't belong to /proc, it belongs to a module, therefore dereferencing it after /proc entry has been registered...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: igb: Clean up operations in all error paths when enabling SR-IOV After commit 50f303496d92 “igb: Enabling SR-IOV after reinit”, removing the igb module could cause a hang or crash depending on the machine when the module was load...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net: macb: fixed the use of “free” after calling “rmmod”. “platdev-dev-platformdata” is released by calling “platformdeviceunregister”. The use of “pclk” and “hclk” constitutes a use-after-free. Since “deviceunregister” does n...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: idpf: A memory leak in the flow steering list has been fixed in rmmod. The flow steering list maintains entries that are added and removed as ethtool creates and deletes flow steering rules. Removing a module with active entries...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix for the race between nbdallocconfig and module removal When the nbd module is being removed, nbdallocconfig may be called concurrently by nbdgenlconnect. Although trymoduleget will return false, nbdallocconfig does not...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: vfio/mdev: Fixed a null-ptr-deref bug for mdevunregisterparent Inject a fault while probing mdpy.ko. If the kstrdup function fails in kobjectaddinternal, which occurs in kobjectinitandadd, mdevtypeadd, parentcreatesysfsfiles, it...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: A memory leak was fixed during the rmmod process. The driver failed to release all the memory it had allocated. This could lead to a memory leak during the removal of the driver. Memory is properly freed when the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net:sfc: Fixed issues with non-freezed interrupts in legacy IRQ mode. The SFC driver can be configured using modparam to work with MSI-X, MSI, or legacy IRQ interrupts. In the latter case, the interrupt wasn’t properly released...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fixed a memory leak in PBLE objects. For the rmmod of irdma, the memory of PBLE objects is not freed. PBLE objects’ memory is not statically allocated at the time of function initialization—unlike other HMC objects...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bonding: An oops occurred during the rmmod operation. The command “rmmod bonding” causes an oops since the commit with the code change cc317ea3d927” „bonding: remove the redundant NULL check in the debugfs function”. The followin...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: satafsl: The UAF issue in satafslportstop was fixed when rmmod satafsl was executed. When the rmmod satafsl.ko command is executed in PPC64 GNU/Linux, a bug was reported:...

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: rcu/rcuscale: The kfreescalethread threads is stopped after unloading the rcuscale module. Running the ‘kfreercutest’ test case results in a fatal error. The root cause is that the kfreescalethread threads continues to run after...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: block, bfq: do not move oombfqq Our test report a UAF: 2073.019181 ================================================================== 2073.019188 BUG: KASAN: use-after-free in bfqputbfqq+0xa0/0x168 2073.019191 Written a size 8...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mwifiex: The link must be brought down before the interface is deleted. We can encounter a deadlock situation when using rmmod to remove a driver or during firmware reset. This is because the cfg80211unregisterwdev function mu...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: pmdomain: arm: Fixed NULL dereference upon removal of scmiperfdomain When the scmiperfdomain module was unloaded, a segmentation fault occurred. In the test system provided to the system under test, the power-domain-cells...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix kernel crash during module removal The driver incorrectly frees client instance and subsequent i40e module removal leads to kernel crash. Reproducer: 1. Do ethtool offline test followed immediately by another one host...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: media: cx25821: Fixed the warning when removing the module When removing the module, the following warning will appear: 14.746697 removeprocentry: Removing the non-empty directory ‘irq/21’; data is being leaked at least from...