CVE-2026-98205: vulnerability in Linux
Input: evdev - zero absinfo before partial copy in EVIOCSABS
Published
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
Input: evdev - zero absinfo before partial copy in EVIOCSABS
The EVIOCSABS handler copies at most the user supplied ioctl size into
an uninitialized on-stack struct input_absinfo:
if (copy_from_user(&abs, p, min_t(size_t,
size, sizeof(struct input_absinfo))))
The size comes from _IOC_SIZE() of the ioctl command and is therefore
fully controlled by userspace. A short size leaves the trailing part of
the structure holding whatever was on the kernel stack, and the whole
structure is then stored into the device:
dev->absinfo[t] = abs;
EVIOCGABS hands that back to userspace, disclosing the stale stack
bytes. Only the resolution field is currently cleared, which covers the
legacy struct layout but not an arbitrarily short size.
Zero the structure before the copy so any part not supplied by the
caller reads back as zero. The existing resolution fixup is kept, since
it also handles a size that partially overlaps that field.
Affected products
Linux · LinuxRelated CVEs — Linux
In the same product, most dangerous first.
CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2024-53150HIGHALSA: usb-audio: Fix out of bounds reads when finding clock sourcesEPSS 1.4%KEV
References
https://git.kernel.org/stable/c/30b853a3d71f16bd0aa66b604bc37dd1254a19b3https://git.kernel.org/stable/c/3dfe48d5307a1ba22c58231d04257737015569cahttps://git.kernel.org/stable/c/71e5619db11dd6429101bd967230d0321ec5ea26https://git.kernel.org/stable/c/89b6ffa4bc10c436fa9aecc73be105124cd58a35https://git.kernel.org/stable/c/8b852965b8eaf910c314dc346967ed82c8d4f235https://git.kernel.org/stable/c/af5f7130cbf39e6e12336d0b7a5f6e76e4e1526bhttps://git.kernel.org/stable/c/c0aebb57b73c7d06ad21731099afe119b113c403https://git.kernel.org/stable/c/e834e134a32b6a5c600fa539bb49146f617743ab