cbcvebase.
CVE-2025-21997
published 2025-04-03

CVE-2025-21997: In the Linux kernel, the following vulnerability has been resolved: xsk: fix an integer overflow in xp_create_and_assign_umem() Since the i and…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.18%
8.1th percentile
In the Linux kernel, the following vulnerability has been resolved: xsk: fix an integer overflow in xp_create_and_assign_umem() Since the i and pool->chunk_size variables are of type 'u32', their product can wrap around and then be cast to 'u64'. This can lead to two different XDP buffers pointing to the same memory area. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.

Affected

19 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.133-1 (bookworm)linux 6.1.133-1 (bookworm)
debianlinux-6.1< linux 6.1.133-1 (bookworm)linux 6.1.133-1 (bookworm)
linuxlinux
linuxlinux>= 94033cd8e73b8632bab7c8b7bb54caa4f5616db7 < 205649d642a5b376724f04f3a5b3586815e43d3b205649d642a5b376724f04f3a5b3586815e43d3b
linuxlinux>= 94033cd8e73b8632bab7c8b7bb54caa4f5616db7 < b7b4be1fa43294b50b22e812715198629806678ab7b4be1fa43294b50b22e812715198629806678a
linuxlinux>= 94033cd8e73b8632bab7c8b7bb54caa4f5616db7 < 130290f44bce0eead2b827302109afc3fe189ddd130290f44bce0eead2b827302109afc3fe189ddd
linuxlinux>= 94033cd8e73b8632bab7c8b7bb54caa4f5616db7 < c7670c197b0f1a8726ad5c87bc2bf001a1fc1bbdc7670c197b0f1a8726ad5c87bc2bf001a1fc1bbd
linuxlinux>= 94033cd8e73b8632bab7c8b7bb54caa4f5616db7 < 559847f56769037e5b2e0474d3dbff985b98083d559847f56769037e5b2e0474d3dbff985b98083d
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.133-16.1.133-1
linuxlinux_kernel>= 0 < 6.12.21-16.12.21-1
linuxlinux_kernel>= 0 < 6.12.21-16.12.21-1
linuxlinux_kernel>= 0 < 6.8.0-84.846.8.0-84.84
linuxlinux_kernel>= 5.16 < 6.1.1326.1.132
linuxlinux_kernel>= 6.13 < 6.13.96.13.9
linuxlinux_kernel>= 6.2 < 6.6.856.6.85
linuxlinux_kernel>= 6.7 < 6.12.216.12.21
msrcazl3_kernel_6.6.82.1-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.85.1-2_on_azure_linux_3.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.9MEDIUM
vendor_ubuntu5.9MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.