https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-03T17:17:03.996423+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/bell-cve-2026-89793 BELL-CVE-2026-89793 2026-10-03T17:17:04.160873+00:00

Affected: Alpaquita:23: linux-lts, Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

 https://cve.radiocsirt.org/vuln/certfr-2026-avi-1253 certfr-2026-avi-1253 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian. Certaines d'entre elles permettent à un… 2026-10-03T17:17:04.160931+00:00 certfr-2026-avi-1253 https://cve.radiocsirt.org/vuln/euvd-2026-369417 EUVD-2026-369417 2026-10-03T17:17:04.160953+00:00 EUVD-2026-369417 https://cve.radiocsirt.org/vuln/fkie_cve-2026-89793 fkie_cve-2026-89793 2026-10-03T17:17:04.160966+00:00

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

ublk: clear VM_MAYWRITE on read-only ublk char device mmap

ublk_ch_mmap() rejects mmap requests with VM_WRITE set, but never clears VM_MAYWRITE on the resulting read-only mapping. This allows a userspace daemon to mmap the per-queue command buffer PROT_READ, then upgrade it to PROT_WRITE via mprotect(), since VM_MAYWRITE was never cleared.

The command buffer holds struct ublksrv_io_desc entries that are kernel-written ABI; a writable mapping lets an unprivileged daemon process corrupt fields such as addr, op_flags, nr_sectors, and start_sector.

Same bug class as the drm/panthor and drm/vc4 VM_MAYWRITE fixes, and the 2026-08-13 ptp/vmclock fix (a5edadbae57e).

Verified via mprotect() PoC: before the fix, a PROT_READ mapping can be upgraded to PROT_READ|PROT_WRITE and a write into the command buffer corrupts io_desc fields (confirmed under KASAN). After the fix, mprotect() returns -EACCES.

 https://cve.radiocsirt.org/vuln/ghsa-fp98-h54j-vwfj GHSA-fp98-h54j-vwfj 2026-10-03T17:17:04.161001+00:00

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

ublk: clear VM_MAYWRITE on read-only ublk char device mmap

ublk_ch_mmap() rejects mmap requests with VM_WRITE set, but never clears VM_MAYWRITE on the resulting read-only mapping. This allows a userspace daemon to mmap the per-queue command buffer PROT_READ, then upgrade it to PROT_WRITE via mprotect(), since VM_MAYWRITE was never cleared.

The command buffer holds struct ublksrv_io_desc entries that are kernel-written ABI; a writable mapping lets an unprivileged daemon process corrupt fields such as addr, op_flags, nr_sectors, and start_sector.

Same bug class as the drm/panthor and drm/vc4 VM_MAYWRITE fixes, and the 2026-08-13 ptp/vmclock fix (a5edadbae57e).

Verified via mprotect() PoC: before the fix, a PROT_READ mapping can be upgraded to PROT_READ|PROT_WRITE and a write into the command buffer corrupts io_desc fields (confirmed under KASAN). After the fix, mprotect() returns -EACCES.

 https://cve.radiocsirt.org/vuln/msrc_cve-2026-89793 msrc_CVE-2026-89793 — ublk: clear VM_MAYWRITE on read-only ublk char device mmap 2026-10-03T17:17:04.161026+00:00 msrc_CVE-2026-89793 https://cve.radiocsirt.org/vuln/opensuse-su-2026:11880-1 openSUSE-SU-2026:11880-1 — kernel-devel-7.2.7-1.1 on GA media 2026-10-03T17:17:04.161044+00:00

kernel-devel-7.2.7-1.1 on GA media

 https://cve.radiocsirt.org/vuln/ubuntu-cve-2026-89793 UBUNTU-CVE-2026-89793 2026-10-03T17:17:04.161570+00:00

Affected: Ubuntu:Pro:14.04:LTS: linux, Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:Pro:16.04:LTS: linux, Ubuntu:Pro:16.04:LTS: linux-aws, 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 and 246 more

In the Linux kernel, the following vulnerability has been resolved: ublk: clear VM_MAYWRITE on read-only ublk char device mmap ublk_ch_mmap() rejects mmap requests with VM_WRITE set, but never clears VM_MAYWRITE on the resulting read-only mapping. This allows a userspace daemon to mmap the per-queue command buffer PROT_READ, then upgrade it to PROT_WRITE via mprotect(), since VM_MAYWRITE was never cleared. The command buffer holds struct ublksrv_io_desc entries that are kernel-written ABI; a writable mapping lets an unprivileged daemon process corrupt fields such as addr, op_flags, nr_sectors, and start_sector. Same bug class as the drm/panthor and drm/vc4 VM_MAYWRITE fixes, and the 2026-08-13 ptp/vmclock fix (a5edadbae57e). Verified via mprotect() PoC: before the fix, a PROT_READ mapping can be upgraded to PROT_READ|PROT_WRITE and a write into the command buffer corrupts io_desc fields (confirmed under KASAN). After the fix, mprotect() returns -EACCES.

 https://cve.radiocsirt.org/vuln/wid-sec-w-2026-3438 WID-SEC-W-2026-3438 — Linux Kernel: Mehrere Schwachstellen 2026-10-03T17:17:04.161922+00:00

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service zu verursachen oder eine nicht näher spezifizierte Auswirkung zu erzielen.