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Security update for the Linux Kernel (Live Patch 12 for SLE 15 SP1)

Security update for the Linux Kernel (Live Patch 9 for SLE 15 SP1)

Security update for the Linux Kernel (Live Patch 20 for SLE 15 SP1)

Security update for the Linux Kernel

Security update for the Linux Kernel

nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71.

Уязвимость функции ndb_queue_rq ядра операционной системы Linux, позволяющая нарушителю выполнить произвольный код

Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a mountpoint controlled by the user, like a removable device. This was introduced in kernel version 4.19 by commit d1d04ef ("ovl: stack file ops"). This was fixed in kernel version 5.8 by commits 56230d9 ("ovl: verify permissions in ovl_path_open()"), 48bd024 ("ovl: switch to mounter creds in readdir") and 05acefb ("ovl: check permission to open real file"). Additionally, commits 130fdbc ("ovl: pass correct flags for opening real directory") and 292f902 ("ovl: call secutiry hook in ovl_real_ioctl()") in kernel 5.8 might also be desired or necessary. These additional commits introduced a regression in overlay mounts within user namespaces which prevented access to files with ownership outside of the...

Уязвимость ядра операционной системы Linux, связанная с отсутствием защиты служебных данных, позволяющая нарушителю раскрыть защищаемую информацию

ELSA-2021-2314: kernel security and bug fix update (IMPORTANT)

Security update for the Linux Kernel

ELSA-2021-1093: kernel security, bug fix, and enhancement update (IMPORTANT)

Security update for the Linux Kernel

ALT-PU-2021-1188: package `kernel-image-mp` update to version 5.10.12-alt1

Security update for the Linux Kernel

ALT-PU-2021-1208: package `kernel-image-un-def` update to version 5.10.13-alt1

ALT-PU-2021-1621: package `kernel-image-std-def` update to version 5.10.28-alt1

ALT-PU-2021-1656: package `kernel-image-std-kvm` update to version 5.10.29-alt1

ALT-PU-2021-1339: package `kernel-image-mp` update to version 5.10.16-alt1

Security update for the Linux Kernel