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ALSA-2024:7000 — Important: kernel security update

Affected: AlmaLinux:8: bpftool, AlmaLinux:8: kernel, AlmaLinux:8: kernel-abi-stablelists, AlmaLinux:8: kernel-core, AlmaLinux:8: kernel-cross-headers, AlmaLinux:8: kernel-debug, AlmaLinux:8: kernel-debug-core, AlmaLinux:8: kernel-debug-devel, AlmaLinux:8: kernel-debug-modules, AlmaLinux:8: kernel-debug-modules-extra and 15 more

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es):

CVE-2023-6040 CVE-2024-26595 CVE-2024-26600 CVE-2021-46984 CVE-2023-52478 CVE-2023-52476 CVE-2023-52522 CVE-2021-47101 CVE-2021-47097 CVE-2023-52605 CVE-2024-26638 CVE-2024-26645 CVE-2024-26665 CVE-2024-26720 CVE-2024-26717 CVE-2024-26769 CVE-2024-26846 CVE-2024-26894 CVE-2024-26880 CVE-2024-26855 CVE-2024-26923 CVE-2024-26939 CVE-2024-27013 CVE-2024-27042 CVE-2024-35809 CVE-2023-52683 CVE-2024-35884 CVE-2024-35877 CVE-2024-35944 CVE-2024-35989 CVE-2021-47412 CVE-2021-47393 CVE-2021-47386 CVE-2021-47385 CVE-2021-47384 CVE-2021-47383 CVE-2021-47432 CVE-2021-47352 CVE-2021-47338 CVE-2021-47321 CVE-2021-47289 CVE-2021-47287 CVE-2023-52798 CVE-2023-52809 CVE-2023-52817 CVE-2023-52840 CVE-2023-52800 CVE-2021-47441 CVE-2021-47466 CVE-2021-47455 CVE-2021-47497 CVE-2021-47560 CVE-2021-47527 CVE-2024-36883 CVE-2024-36922 CVE-2024-36920 CVE-2024-36902 CVE-2024-36953 CVE-2024-36939 CVE-2024-36919 CVE-2024-36901 CVE-2021-47582 CVE-2021-47609 CVE-2024-38619 CVE-2022-48754 CVE-2022-48760 CVE-2024-38581 CVE-2024-38579 CVE-2024-38570 CVE-2024-38559 CVE-2024-38558 CVE-2024-37356 CVE-2024-39471 CVE-2024-39499 CVE-2024-39501 CVE-2024-39506 CVE-2024-40904 CVE-2024-40911 CVE-2024-40912 CVE-2024-40929 CVE-2024-40931 CVE-2024-40941 CVE-2024-40954 CVE-2024-40958 CVE-2024-40959 CVE-2024-40960 CVE-2024-40972…

bdu:2024-10940

certfr-2024-avi-0578 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un at…

certfr-2024-avi-0578

EUVD-2026-310134

fkie_cve-2022-48760

In the Linux kernel, the following vulnerability has been resolved:

USB: core: Fix hang in usb_kill_urb by adding memory barriers

The syzbot fuzzer has identified a bug in which processes hang waiting for usb_kill_urb() to return. It turns out the issue is not unlinking the URB; that works just fine. Rather, the problem arises when the wakeup notification that the URB has completed is not received.

The reason is memory-access ordering on SMP systems. In outline form, usb_kill_urb() and __usb_hcd_giveback_urb() operating concurrently on different CPUs perform the following actions:

CPU 0 CPU 1 ---------------------------- --------------------------------- usb_kill_urb(): __usb_hcd_giveback_urb(): ... ... atomic_inc(&urb->reject); atomic_dec(&urb->use_count); ... ... wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); if (atomic_read(&urb->reject)) wake_up(&usb_kill_urb_queue);

Confining your attention to urb->reject and urb->use_count, you can see that the overall pattern of accesses on CPU 0 is:

write urb->reject, then read urb->use_count;

whereas the overall pattern of accesses on CPU 1 is:

write urb->use_count, then read urb->reject.

This pattern is referred to in memory-model circles as SB (for "Store Buffering"), and it is well known that without suitable enforcement of the desired order of accesses -- in the form of memory barriers -- it is entirely possible for one or both CPUs to execute their r…

GHSA-3wjp-7h53-cfv8

In the Linux kernel, the following vulnerability has been resolved:

USB: core: Fix hang in usb_kill_urb by adding memory barriers

The reason is memory-access ordering on SMP systems. In outline form, usb_kill_urb() and __usb_hcd_giveback_urb() operating concurrently on different CPUs perform the following actions:

Confining your attention to urb->reject and urb->use_count, you can see that the overall pattern of accesses on CPU 0 is:

write urb->reject, then read urb->use_count;

whereas the overall pattern of accesses on CPU 1 is:

write urb->use_count, then read urb->reject.

OESA-2024-1862 — kernel security update

Affected: openEuler:20.03-LTS-SP4: kernel

The Linux Kernel, the operating system core itself. Security Fix(es): In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak vcpu_put is not called if the user copy fails. This can result in preempt notifier corruption and crashes, among other issues.(CVE-2021-47296) In the Linux kernel, the following vulnerability has been resolved: net: qcom/emac: fix UAF in emac_remove adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.(CVE-2021-47311) In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Ensure rdma_addr_cancel() happens before issuing more requests The FSM can run in a circle allowing rdma_resolve_ip() to be called twice on the same id_priv. While this cannot happen without going through the work, it violates the invariant that the same address resolution background request cannot be active twice. CPU 1 CPU 2 rdma_resolve_addr(): RDMA_CM_IDLE -> RDMA_CM_ADDR_QUERY rdma_resolve_ip(addr_handler) #1 process_one_req(): for #1 addr_handler(): RDMA_CM_ADDR_QUERY -> RDMA_CM_ADDR_BOUND mutex_unlock(&id_priv->handler_mutex); [.. handler still running ..]…

RHSA-2024:7000 — Red Hat Security Advisory: kernel security update

kernel: kyber: fix out of bounds access when preempted kernel: Input: elantech - fix stack out of bound access in elantech_change_report_id() kernel: asix: fix uninit-value in asix_mdio_read() kernel: driver core: auxiliary bus: Fix memory leak when driver_register() fail kernel: ACPI: fix NULL pointer dereference kernel: watchdog: Fix possible use-after-free by calling del_timer_sync() kernel: fbmem: Do not delete the mode that is still in use kernel: virtio-net: Add validation for used length kernel: tty: Fix out-of-bound vmalloc access in imageblit kernel: hwmon: (w83793) Fix NULL pointer dereference by removing unnecessary structure field kernel: hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field kernel: hwmon: (w83791d) Fix NULL pointer dereference by removing unnecessary structure field kernel: hwmon: (mlxreg-fan) Return non-zero value when fan current state is enforced from sysfs kernel: block: don't call rq_qos_ops->done_bio if the bio isn't tracked kernel: lib/generic-radix-tree.c: Don't overflow in peek() kernel: mlxsw: thermal: Fix out-of-bounds memory accesses kernel: ptp: Fix possible memory leak in ptp_clock_register() kernel: mm, slub: fix potential memoryleak in kmem_cache_open() kernel: nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells kernel: serial: core: fix transmit-buffer reset and memleak kernel: mlxsw: spectrum: Protect driver from buggy firmware kernel: USB: core: Make do_proc_control() and do_proc_bulk() k…

RHSA-2024:7001 — Red Hat Security Advisory: kernel-rt security update

SUSE-SU-2024:2360-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2022-48760

Affected: Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux, Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:Pro:16.04:LTS: linux-aws-hwe, Ubuntu:Pro:16.04:LTS: linux-azure, Ubuntu:Pro:16.04:LTS: linux-gcp, Ubuntu:Pro:16.04:LTS: linux-hwe, Ubuntu:Pro:16.04:LTS: linux-oracle, Ubuntu:Pro:16.04:LTS: linux and 111 more

In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix hang in usb_kill_urb by adding memory barriers The syzbot fuzzer has identified a bug in which processes hang waiting for usb_kill_urb() to return. It turns out the issue is not unlinking the URB; that works just fine. Rather, the problem arises when the wakeup notification that the URB has completed is not received. The reason is memory-access ordering on SMP systems. In outline form, usb_kill_urb() and __usb_hcd_giveback_urb() operating concurrently on different CPUs perform the following actions: CPU 0 CPU 1 ---------------------------- --------------------------------- usb_kill_urb(): __usb_hcd_giveback_urb(): ... ... atomic_inc(&urb->reject); atomic_dec(&urb->use_count); ... ... wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); if (atomic_read(&urb->reject)) wake_up(&usb_kill_urb_queue); Confining your attention to urb->reject and urb->use_count, you can see that the overall pattern of accesses on CPU 0 is: write urb->reject, then read urb->use_count; whereas the overall pattern of accesses on CPU 1 is: write urb->use_count, then read urb->reject. This pattern is referred to in memory-model circles as SB (for "Store Buffering"), and it is well known that without suitable enforcement of the desired order of accesses -- in the form of memory barriers -- it is entirely possible for one or both CPUs to execute their reads ahea…

WID-SEC-W-2024-1422 — Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.