CVE-2024-36896: linux NULL Pointer Dereference
Vulnerability summary
CVE-2024-36896 is a critical (CVSS 9.1) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.92% chance of exploitation in the next 30 days, higher than 59.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 21 · Related 15Timeline
- 30-05-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix access violation during port device removal Testing with KASAN and syzkaller revealed a bug in port.c:disable_store(): usb_hub_to_struct_hub() can return NULL if the hub that the port belongs to is concurrently removed, but the function does not check for this possibility before dereferencing the returned value. It turns out that the first dereference is unnecessary, since hub->intfdev is the parent of the port device, so it can be changed easily. Adding a check for hub == NULL prevents further problems. The same bug exists in the disable_show() routine, and it can be fixed the same way.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- NVDNIST9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS trend
Probability
0.92%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.92% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu92 products
- linux< 6.8.0-40.40
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1013.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ f061f43d7418cb62b8d073e221ec75d3f5b89e17, < 5f1d68ef5ddac27c6b997adccd1c339cef1e6848 | ≥ f061f43d7418cb62b8d073e221ec75d3f5b89e17, < 63533549ff53d24daf47c443dbd43c308afc3434 | ≥ f061f43d7418cb62b8d073e221ec75d3f5b89e17, < 6119ef6517ce501fc548154691abdaf1f954a277 | ≥ f061f43d7418cb62b8d073e221ec75d3f5b89e17, < a4b46d450c49f32e9d4247b421e58083fde304ce | 6.0
- linux_kernel≥ 6.0, < 6.1.91 | ≥ 6.2, < 6.6.31 | ≥ 6.7, < 6.8.10 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3 | 6.9:rc4 | 6.9:rc5 | 6.9:rc6
Debian1 product
- linux< 6.1.94-1 | < 6.8.11-1
3 vendors · 95 products
