Medium 5.5Published Sep 18, 2024

CVE-2024-46745Input: uinput - reject requests with unreasonable number of slots

Updated under an hour ago (Oct 27, 2026, 8:23 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: Input: uinput - reject requests with unreasonable number of slots When exercising uinput interface syzkaller may try setting up device with a really large number of slots, which causes memory allocation failure in input_mt_init_slots(). While this allocation failure is handled properly and request is rejected, it results in syzkaller reports. Additionally, such request may put undue burden on the system which will try to free a lot of memory for a bogus request. Fix it by limiting allowed number of slots to 100. This can easily be extended if we see devices that can track more than 100 contacts.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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)	38e7afe96c7c0ad900824911c61fdb04078033dc builds before 9c6d189f0c1c59ba9a32326ec82a0b367a3cd47b; from 38e7afe96c7c0ad900824911c61fdb04078033dc before 597ff930296c4c8fc6b6a536884d4f1a7187ec70; from 38e7afe96c7c0ad900824911c61fdb04078033dc before 51fa08edd80003db700bdaa099385c5900d27f4b; from 38e7afe96c7c0ad900824911c61fdb04078033dc before 9719687398dea8a6a12a10321a54dd75eec7ab2d; from 38e7afe96c7c0ad900824911c61fdb04078033dc before 61df76619e270a46fd427fbdeb670ad491c42de2; from 38e7afe96c7c0ad900824911c61fdb04078033dc before a4858b00a1ec57043697fb935565fe267f161833; from 38e7afe96c7c0ad900824911c61fdb04078033dc before d76fc0f0b18d49b7e721c9e4975ef4bffde2f3e7; from 38e7afe96c7c0ad900824911c61fdb04078033dc before 206f533a0a7c683982af473079c4111f4a0f9f5e	CNA record
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
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
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name)	before V3.2	CISA ADP
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name)	before V3.2	CISA ADP
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name)	before V3.2	CISA ADP
linux linux_kernel linux:linux_kernel	before 4.19.322; from 4.20 before 5.4.284; from 5.5 before 5.10.226; from 5.11 before 5.15.167; from 5.16 before 6.1.110; from 6.2 before 6.6.51; from 6.7 before 6.10.10; 6.11; and 3 more ranges	NVD

References

References

https://git.kernel.org/stable/c/9c6d189f0c1c59ba9a32326ec82a0b367a3cd47b	patch
https://git.kernel.org/stable/c/597ff930296c4c8fc6b6a536884d4f1a7187ec70	patch
https://git.kernel.org/stable/c/51fa08edd80003db700bdaa099385c5900d27f4b	patch
https://git.kernel.org/stable/c/9719687398dea8a6a12a10321a54dd75eec7ab2d	patch
https://git.kernel.org/stable/c/61df76619e270a46fd427fbdeb670ad491c42de2	patch
https://git.kernel.org/stable/c/a4858b00a1ec57043697fb935565fe267f161833	patch
https://git.kernel.org/stable/c/d76fc0f0b18d49b7e721c9e4975ef4bffde2f3e7	patch
https://git.kernel.org/stable/c/206f533a0a7c683982af473079c4111f4a0f9f5e	patch
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
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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.