38 matches found
PT-2026-3763
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.12.62 Description The Linux kernel contained a flaw within the networking subsystem related to usercopy handling. Specifically, the skbuff fclone cache was initialized without defining a usercopy region, unlike...
Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989325)
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989325 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Whitelist dtl slub object for copying to userspace Reading the dispatch trace lo...
SUSE CVE-2023-53487
In the Linux kernel, the following vulnerability has been resolved: powerpc/rtasflash: allow user copy to flash block cache objects With hardened usercopy enabled CONFIGHARDENEDUSERCOPY=y, using the /proc/powerpc/rtas/firmwareupdate interface to prepare a system firmware update yields a BUG: kern...
kernel: cifs: Fix the smbd_response slab to allow usercopy
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix the smbdresponse slab to allow usercopy The handling of received data in the smbdirect client code involves using copytoiter to copy data from the smbdreponse struct's packet trailer to a folioq buffer provided by...
UBUNTU-CVE-2025-38523
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix the smbdresponse slab to allow usercopy The handling of received data in the smbdirect client code involves using copytoiter to copy data from the smbdreponse struct's packet trailer to a folioq buffer provided by...
CVE-2025-38523
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix the smbdresponse slab to allow usercopy The handling of received data in the smbdirect client code involves using copytoiter to copy data from the smbdreponse struct's packet trailer to a folioq buffer provided by...
CVE-2025-38523
CVE-2025-38523 affects the Linux kernel CIFS/SMB client path. The issue stems from the smbd_response slab’s packet trailer not being marked as allowed for usercopy, causing kernel memory exposure checks in copy_to_iter() to trip when HARDENED_USERCOPY is enabled. The fix is in the kernel by confi...
CVE-2025-38523 cifs: Fix the smbd_response slab to allow usercopy
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix the smbdresponse slab to allow usercopy The handling of received data in the smbdirect client code involves using copytoiter to copy data from the smbdreponse struct's packet trailer to a folioq buffer provided by...
PT-2025-33566 · Linux · Linux Kernel
Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The handling of received data in the smbdirect client code uses copy to iter to copy data from the smbd response struct's packet trailer to a folioq buffer. When CONFIG HARDENED...
Astra Linux - уязвимость в linux-5.10
In the Linux kernel, the following vulnerability has been resolved: net: use a bounce buffer for copying skb-mark syzbot found arm64 builds would crash in sockrecvmark when CONFIGHARDENEDUSERCOPY=y x86 and powerpc are not detecting the issue because they define useraccessbegin. This will be handl...
kernel: powerpc/pseries: Whitelist dtl slub object for copying to userspace
In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Whitelist dtl slub object for copying to userspace Reading the dispatch trace log from /sys/kernel/debug/powerpc/dtl/cpu- results in a BUG when the config CONFIGHARDENEDUSERCOPY is enabled as shown below. kernel...
kernel: dmaengine: idxd: Ensure safe user copy of completion record
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Ensure safe user copy of completion record If CONFIGHARDENEDUSERCOPY is enabled, copying completion record from event log cache to user triggers a kernel bug. 1987.159822 usercopy: Kernel memory exposure attempt...
SUSE CVE-2023-52701
In the Linux kernel, the following vulnerability has been resolved: net: use a bounce buffer for copying skb-mark syzbot found arm64 builds would crash in sockrecvmark when CONFIGHARDENEDUSERCOPY=y x86 and powerpc are not detecting the issue because they define useraccessbegin. This will be handl...
DEBIAN-CVE-2023-52701
In the Linux kernel, the following vulnerability has been resolved: net: use a bounce buffer for copying skb-mark syzbot found arm64 builds would crash in sockrecvmark when CONFIGHARDENEDUSERCOPY=y x86 and powerpc are not detecting the issue because they define useraccessbegin. This will be handl...
SUSE CVE-2024-26746
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Ensure safe user copy of completion record If CONFIGHARDENEDUSERCOPY is enabled, copying completion record from event log cache to user triggers a kernel bug. 1987.159822 usercopy: Kernel memory exposure attempt...
DEBIAN-CVE-2024-26746
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Ensure safe user copy of completion record If CONFIGHARDENEDUSERCOPY is enabled, copying completion record from event log cache to user triggers a kernel bug. 1987.159822 usercopy: Kernel memory exposure attempt...
UBUNTU-CVE-2024-26746
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Ensure safe user copy of completion record If CONFIGHARDENEDUSERCOPY is enabled, copying completion record from event log cache to user triggers a kernel bug. 1987.159822 usercopy: Kernel memory exposure attempt...
PT-2024-14698
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 Description The vulnerability is related to a kernel memory exposure attempt detected from the SLUB object 'skbuff head cache' in the Linux kernel. The issue occurs when th...