High 7.1Published May 20, 2024

CVE-2024-35966Bluetooth: RFCOMM: Fix not validating setsockopt user input

Updated under an hour ago (Oct 26, 2026, 9:00 PM ET)

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It affects Linux and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: Fix not validating setsockopt user input syzbot reported rfcomm_sock_setsockopt_old() is copying data without checking user input length. BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in rfcomm_sock_setsockopt_old net/bluetooth/rfcomm/sock.c:632 [inline] BUG: KASAN: slab-out-of-bounds in rfcomm_sock_setsockopt+0x893/0xa70 net/bluetooth/rfcomm/sock.c:673 Read of size 4 at addr ffff8880209a8bc3 by task syz-executor632/5064

CVSS: 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from bb23c0ab824653be4aa7dfca15b07b3059717004 before d072ea24748189cd8f4a9c3f585ca9af073a0838; from bb23c0ab824653be4aa7dfca15b07b3059717004 before 00767fbd67af70d7a550caa5b12d9515fa978bab; from bb23c0ab824653be4aa7dfca15b07b3059717004 before eea40d33bf936a5c7fb03c190e61e0cfee00e872; from bb23c0ab824653be4aa7dfca15b07b3059717004 before 4ea65e2095e9bd151d0469328dd7fc2858feb546; from bb23c0ab824653be4aa7dfca15b07b3059717004 before c3f787a3eafe519c93df9abbb0ca5145861c8d0f; from bb23c0ab824653be4aa7dfca15b07b3059717004 before a97de7bff13b1cc825c1b1344eaed8d6c2d3e695	CNA record
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	before V1.1.1	CISA ADP
linux linux_kernel linux:linux_kernel	from 2.6.30 before 5.10.234; from 5.11 before 5.15.178; from 5.16 before 6.1.107; from 6.2 before 6.6.47; from 6.7 before 6.8.7; 6.9; 6.9; 6.9	NVD

References

References

https://git.kernel.org/stable/c/d072ea24748189cd8f4a9c3f585ca9af073a0838	patch
https://git.kernel.org/stable/c/00767fbd67af70d7a550caa5b12d9515fa978bab	patch
https://git.kernel.org/stable/c/eea40d33bf936a5c7fb03c190e61e0cfee00e872	patch
https://git.kernel.org/stable/c/4ea65e2095e9bd151d0469328dd7fc2858feb546	patch
https://git.kernel.org/stable/c/c3f787a3eafe519c93df9abbb0ca5145861c8d0f	patch
https://git.kernel.org/stable/c/a97de7bff13b1cc825c1b1344eaed8d6c2d3e695	patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.