Unbreakable Enterprise kernel security update

5.15.0-203.146.5.1 - Revert 'selftests/bpf: Test tail call counting with bpf2bpf and data on stack' Samasth Norway Ananda Orabug: 36277693 - Revert 'tcp: fix excessive TLP and RACK timeouts from HZ rounding' Sherry Yang Orabug: 36277684 5.15.0-203.146.5 - i2c: core: Fix atomic xfer check for...

PT-2024-21487

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to a deadlock between the fctx lock and the irq lock in the Linux kernel, specifically in the nouveau component. This deadlock is resolved by offloading the processi...

CVE-2023-46836

The fixes for XSA-422 Branch Type Confusion and XSA-434 Speculative Return Stack Overflow are not IRQ-safe. It was believed that the mitigations always operated in contexts with IRQs disabled. However, the original XSA-254 fix for Meltdown XPTI deliberately left interrupts enabled on two entry...

CVE-2023-46836

The fixes for XSA-422 Branch Type Confusion and XSA-434 Speculative Return Stack Overflow are not IRQ-safe. It was believed that the mitigations always operated in contexts with IRQs disabled. However, the original XSA-254 fix for Meltdown XPTI deliberately left interrupts enabled on two entry...

CVE-2023-46836

The fixes for XSA-422 Branch Type Confusion and XSA-434 Speculative Return Stack Overflow are not IRQ-safe. It was believed that the mitigations always operated in contexts with IRQs disabled. However, the original XSA-254 fix for Meltdown XPTI deliberately left interrupts enabled on two entry...

Type confusion

The fixes for XSA-422 Branch Type Confusion and XSA-434 Speculative Return Stack Overflow are not IRQ-safe. It was believed that the mitigations always operated in contexts with IRQs disabled. However, the original XSA-254 fix for Meltdown XPTI deliberately left interrupts enabled on two entry...

CVE-2023-46836

The CVE pertains to Xen virtualization. The issue is a race condition where mitigations for XSA-422 (Branch Type Confusion) and XSA-434 (Speculative Return Stack Overflow) are not IRQ-safe; one entry path remains with interrupts enabled, and combined with the Meltdown XPTI fix (XSA-254) this was ...

CVE-2023-46836 x86: BTC/SRSO fixes not fully effective

The fixes for XSA-422 Branch Type Confusion and XSA-434 Speculative Return Stack Overflow are not IRQ-safe. It was believed that the mitigations always operated in contexts with IRQs disabled. However, the original XSA-254 fix for Meltdown XPTI deliberately left interrupts enabled on two entry...

Unbreakable Enterprise kernel-container security update

5.4.17-2136.326.6.el7 - Revert 'md/raid5: Wait for MDSBCHANGEPENDING in raid5d' Junxiao Bi Orabug: 35914789 - md: bypass block throttle for superblock update Junxiao Bi Orabug: 35914789 5.4.17-2136.326.5.el7 - Revert 'tracing: Increase trace array ref count on enable and filter files' Sherry Yang...

Xen: x86: BTC/SRSO Fixes Not Fully Effective (XSA-446)

The fixes for XSA-422 Branch Type Confusion and XSA-434 Speculative Return Stack Overflow are not IRQ-safe as it was believed that the mitigations were always operated in contexts with IRQs disabled. However due to an unanticipated interaction with XSA-254 Meltdown, a race condition exists whereb...

kernel: usb: xhci-mtk: fix leakage of shared hcd when fail to set wakeup irq

In the Linux kernel, the following vulnerability has been resolved: usb: xhci-mtk: fix leakage of shared hcd when fail to set wakeup irq Can not set the @sharedhcd to NULL before decrease the usage count by usbputhcd, this will cause the shared hcd not released...

kernel: media: uvcvideo: Fix memory leak in uvc_gpio_parse

A memory leak was found in the UVC video driver's GPIO parsing code. When IRQ acquisition fails for a privacy GPIO, the previously allocated unit buffer is not freed, causing a memory leak...

kernel: writeback: avoid use-after-free after removing device

In the Linux kernel, the following vulnerability has been resolved: writeback: avoid use-after-free after removing device When a disk is removed, bdiunregister gets called to stop further writeback and wait for associated delayed work to complete. However, wbinodewritebackend may schedule bandwid...

kernel: regmap-irq: Use the new num_config_regs property in regmap_add_irq_chip_fwnode

In the Linux kernel, the following vulnerability has been resolved: regmap-irq: Use the new numconfigregs property in regmapaddirqchipfwnode Commit faa87ce9196d "regmap-irq: Introduce config registers for irq types" added the numconfigregs, then commit 9edd4f5aee84 "regmap-irq: Deprecate type...

kernel: drm/amdgpu: Fix memory leak in hpd_rx_irq_create_workqueue()

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix memory leak in hpdrxirqcreateworkqueue If construction of the array of work queues to handle hpdrxirq offload work fails, we need to unwind. Destroy all the created workqueues and the allocated memory for the...

kernel: io_uring/rw: defer fsnotify calls to task context

A locking context violation was found in the Linux kernel's iouring subsystem. The fsnotify calls were being made directly from kiocb completion context, which can execute in soft or hard IRQ context. This causes lockdep warnings when fsnotify attempts memory allocation with GFPKERNEL flags, whic...

CVE-2023-5563

The SJA1000 CAN controller driver backend automatically attempt to recover from a bus-off event when built with CONFIGCANAUTOBUSOFFRECOVERY=y. This results in calling ksleep in IRQ context, causing a fatal exception...

Code injection

The SJA1000 CAN controller driver backend automatically attempt to recover from a bus-off event when built with CONFIGCANAUTOBUSOFFRECOVERY=y. This results in calling ksleep in IRQ context, causing a fatal exception...

CVE-2023-5563

CVE-2023-5563 affects Zephyr RTOS, specifically the SJA1000 CAN controller driver backend. When built with CONFIG_CAN_AUTO_BUS_OFF_RECOVERY=y, the driver attempts to recover from a bus-off event by calling k_sleep() in IRQ context, which leads to a fatal exception. The linked documents confirm th...

Unbreakable Enterprise kernel security update

4.14.35-2047.529.3 - uek-rpm: Update kernel linux-firmware dependency to 20230516-999.26.git6c9e0ed5. Somasundaram Krishnasamy Orabug: 35724203 - LTS version: v4.14.322 Saeed Mirzamohammadi - drm/edid: fix objtool warning in drmcvtmodes Linus Torvalds - mtd: rawnand: omapelm: Fix incorrect type i...