Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from an alignment assumption error vulnerability in the pticlonepgtable function in the x86/mm component...

DEBIAN-CVE-2024-42293

In the Linux kernel, the following vulnerability has been resolved: arm64: mm: Fix lockless walks with static and dynamic page-table folding Lina reports random oopsen originating from the fast GUP code when 16K pages are used with 4-level page-tables, the fourth level being folded at runtime due...

CVE-2021-47623

In the Linux kernel, the following vulnerability has been resolved: powerpc/fixmap: Fix VM debug warning on unmap Unmapping a fixmap entry is done by calling setfixmap with FIXMAPPAGECLEAR as flags. Today, powerpc setfixmap calls mapkernelpage. mapkernelpage is not happy when called a second time...

CVE-2021-47623

In the Linux kernel, the following vulnerability has been resolved: powerpc/fixmap: Fix VM debug warning on unmap Unmapping a fixmap entry is done by calling setfixmap with FIXMAPPAGECLEAR as flags. Today, powerpc setfixmap calls mapkernelpage. mapkernelpage is not happy when called a second time...

CVE-2024-40948 mm/page_table_check: fix crash on ZONE_DEVICE

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: fix crash on ZONEDEVICE Not all pages may apply to pgtable check. One example is ZONEDEVICE pages: they map PFNs directly, and they don't allocate pageext at all even if there's struct page around. One may...

CVE-2024-40948

Technical details for CVE-2024-40948 (e.g., affected products/versions, root cause, impact, fix) are not provided in the Connected documents. Monitor for updates and refer to the initial description for the vulnerability summary.

CVE-2024-40948 mm/page_table_check: fix crash on ZONE_DEVICE

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: fix crash on ZONEDEVICE Not all pages may apply to pgtable check. One example is ZONEDEVICE pages: they map PFNs directly, and they don't allocate pageext at all even if there's struct page around. One may...

kernel: powerpc/mm: Fix null-pointer dereference in pgtable_cache_add

A possible null-pointer dereference was found in pgtablecacheadd in the Linux kernel. This may cause a crash...

CVE-2024-36881

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when close for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all the relevant pgtable entries, but that only covered an explicit UFFDIOUNREGISTER ioctl, not a...

CVE-2024-36881 mm/userfaultfd: reset ptes when close() for wr-protected ones

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when close for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all the relevant pgtable entries, but that only covered an explicit UFFDIOUNREGISTER ioctl, not a...

DEBIAN-CVE-2024-26850

In the Linux kernel, the following vulnerability has been resolved: mm/debugvmpgtable: fix BUGON with pud advanced test Architectures like powerpc add debug checks to ensure we find only devmap PUD pte entries. These debug checks are only done with CONFIGDEBUGVM. This patch marks the ptes used fo...

UBUNTU-CVE-2024-26850

In the Linux kernel, the following vulnerability has been resolved: mm/debugvmpgtable: fix BUGON with pud advanced test Architectures like powerpc add debug checks to ensure we find only devmap PUD pte entries. These debug checks are only done with CONFIGDEBUGVM. This patch marks the ptes used fo...

SUSE CVE-2023-52607

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: Fix null-pointer dereference in pgtablecacheadd kasprintf returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity...

DEBIAN-CVE-2023-52607

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: Fix null-pointer dereference in pgtablecacheadd kasprintf returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity...

Unbreakable Enterprise kernel-container security update

4.14.35-2047.504.2.el7 - md/raid1: properly indicate failure when ending a failed write request Paul Clements Orabug: 32887159 - video: hypervfb: Add ratelimit on error message Michael Kelley Orabug: 32856879 - Drivers: hv: vmbus: Initialize unloadevent statically Andrea Parri Microsoft Orabug:...

openSUSE Security Update : the Linux Kernel (openSUSE-2021-241)

The openSUSE Leap 15.2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2021-3347: A use-after-free was discovered in the PI futexes during fault handling, allowing local users to execute code in the kernel bnc1181349. - CVE-2021-3348:...

Security update for the Linux Kernel (important)

openSUSE Security Update: Security update for the Linux Kernel Announcement ID: openSUSE-SU-2019:1085-1 Rating: important References: 1012382 1020413 1065600 1070767 1075697 1082943 1087092 1090435 1102959 1103429 1106929 1109137 1109248 1119019 1119843 1120691 1120902 1121713 1121805 1124235...

kernel security and bug fix update

2.6.32-696.28.1.OL6 - Update genkey bug 25599697 2.6.32-696.28.1 - x86 entry/64: Don't use IST entry for BP stack Waiman Long 1567078 1567079 CVE-2018-8897 - x86 xen: do not use xeninfo on HVM, set pvinfo name to 'Xen HVM' Vitaly Kuznetsov 1569141 1568241 2.6.32-696.27.1 - mm account skipped...