5.5

CVE-2024-41035: USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor

Modified
AliasesUBUNTU-CVE-2024-41035DEBIAN-CVE-2024-41035
Published 29-07-2024Last modified 23-05-2026

Vulnerability summary

CVE-2024-41035 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 22.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 40 · Related 33
DLA-4008-1DSA-5747-1MGASA-2024-0277MGASA-2024-0278RHSA-2024:7000RHSA-2024:7001

Timeline

  1. 29-07-2024
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor Syzbot has identified a bug in usbcore (see the Closes: tag below) caused by our assumption that the reserved bits in an endpoint descriptor's bEndpointAddress field will always be 0. As a result of the bug, the endpoint_is_duplicate() routine in config.c (and possibly other routines as well) may believe that two descriptors are for distinct endpoints, even though they have the same direction and endpoint number. This can lead to confusion, including the bug identified by syzbot (two descriptors with matching endpoint numbers and directions, where one was interrupt and the other was bulk). To fix the bug, we will clear the reserved bits in bEndpointAddress when we parse the descriptor. (Note that both the USB-2.0 and USB-3.1 specs say these bits are "Reserved, reset to zero".) This requires us to make a copy of the descriptor earlier in usb_parse_endpoint() and use the copy instead of the original when checking for duplicates.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.30% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu129 products
  • linuxAll versions (No fix recorded) | < 5.4.0-195.215 | < 5.15.0-121.131 | < 6.8.0-48.48
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1132.142 | < 5.15.0-1069.75 | < 6.8.0-1018.20
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 0a8fd1346254974c3a852338508e4a4cddbb35f1, < d8418fd083d1b90a6c007cf8dcf81aeae274727b | ≥ 0a8fd1346254974c3a852338508e4a4cddbb35f1, < 60abea505b726b38232a0ef410d2bd1994a77f78 | ≥ 0a8fd1346254974c3a852338508e4a4cddbb35f1, < d09dd21bb5215d583ca9a1cb1464dbc77a7e88cf | ≥ 0a8fd1346254974c3a852338508e4a4cddbb35f1, < 2bd8534a1b83c65702aec3cab164170f8e584188 | ≥ 0a8fd1346254974c3a852338508e4a4cddbb35f1, < 9edcf317620d7c6a8354911b69b874cf89716646 | ≥ 0a8fd1346254974c3a852338508e4a4cddbb35f1, < 647d61aef106dbed9c70447bcddbd4968e67ca64 | ≥ 0a8fd1346254974c3a852338508e4a4cddbb35f1, < 37514a5c1251a8c5c95c323f55050736e7069ac7 | ≥ 0a8fd1346254974c3a852338508e4a4cddbb35f1, < a368ecde8a5055b627749b09c6218ef793043e47 | c3726b442527ab31c7110d0445411f5b5343db01 | 15668b4354b38b41b316571deed2763d631b2977 | 8597a9245181656ae2ef341906e5f40af323fbca | 264024a2676ba7d91fe7b1713b2c32d1b0b508cb | b0de742a1be16b76b534d088682f18cf57f012d2 | 7cc00abef071a8a7d0f4457b7afa2f57f683d83f | 05b0f2fc3c2f9efda47439557e0d51faca7e43ed | ≥ 3.2.87, < 3.3 | ≥ 3.10.106, < 3.11 | ≥ 3.12.70, < 3.13 | ≥ 3.16.42, < 3.17 | ≥ 4.1.39, < 4.2 | ≥ 4.4.42, < 4.5 | ≥ 4.9.3, < 4.10 | 4.10
  • linux_kernel≥ 3.2.87, < 3.3 | ≥ 3.10.106, < 3.11 | ≥ 3.12.70, < 3.13 | ≥ 3.16.42, < 3.17 | ≥ 4.1.39, < 4.2 | ≥ 4.4.42, < 4.5 | ≥ 4.9.3, < 4.10 | ≥ 4.10.1, < 4.19.318 | ≥ 4.20, < 5.4.280 | ≥ 5.5, < 5.10.222 | ≥ 5.11, < 5.15.163 | ≥ 5.16, < 6.1.100 | ≥ 6.2, < 6.6.41 | ≥ 6.7, < 6.9.10 | 4.10 | 4.10:rc3 | 4.10:rc4 | 4.10:rc5 | 4.10:rc6 | 4.10:rc7 | 4.10:rc8 | 6.10:rc1 | 6.10:rc2 | 6.10:rc3 | 6.10:rc4 | 6.10:rc5 | 6.10:rc6 | 6.10:rc7
Debian1 product
  • linux< 6.1.106-1 | < 6.9.10-1

3 vendors · 132 products

References

35 links
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