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Linux KernelOperating system · Linux

CVE-2024-38567

MEDIUM · 5.5 CVSS v3.1 Published 2024-06-19
Fix available
A fix is available. Upgrade to 4.19.316 / 5.4.278 or later.
See remediation →
57/100
Remediation priority · Elevated
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In the Linux kernel, the following vulnerability has been resolved: wifi: carl9170: add a proper sanity check for endpoints Syzkaller reports [1] hitting a warning which is caused by presence of a wrong endpoint type at the URB sumbitting stage. While there was a check for a specific 4th endpoint, since it can switch types between bulk and interrupt, other endpoints are trusted implicitly. Similar warning is triggered in a couple of other syzbot issues [2]. Fix the issue by doing a comprehensive check of all endpoints taking into account difference between high- and full-speed configuration. [1] Syzkaller report: ... WARNING: CPU: 0 PID: 4721 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504 ... Call Trace: <TASK> carl9170_usb_send_rx_irq_urb+0x273/0x340 drivers/net/wireless/ath/carl9170/usb.c:504 carl9170_usb_init_device drivers/net/wireless/ath/carl9170/usb.c:939 [inline] carl9170_usb_firmware_finish drivers/net/wireless/ath/carl9170/usb.c:999 [inline] carl9170_usb_firmware_step2+0x175/0x240 drivers/net/wireless/ath/carl9170/usb.c:1028 request_firmware_work_func+0x130/0x240 drivers/base/firmware_loader/main.c:1107 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> [2] Related syzkaller crashes:

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Linux KernelOperating system
Affected:>= 2.6.37, < 4.19.316>= 4.20, < 5.4.278>= 5.5, < 5.10.219>= 5.11, < 5.15.161>= 5.16, < 6.1.93>= 6.2, < 6.6.33>= 6.7, < 6.8.12>= 6.9, < 6.9.3

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 4.19.316 / 5.4.278 / 5.10.219 or later
Fixed in 4.19.3165.4.2785.10.219
Vendor patch git.kernel.org →
Recommended fix High confidence

Upgrade to Linux kernel >= 4.19.316, >= 5.4.278, >= 5.10.219, or >= 5.15.161 (choose the branch appropriate for your system)

  1. Identify the current running kernel version using `uname -r`
  2. Determine which stable kernel branch is appropriate for your system based on the affected version ranges: 4.19.316+, 5.4.278+, 5.10.219+, or 5.15.161+
  3. Obtain a fixed kernel package from your distribution's kernel repositories or compile a new kernel from kernel.org
  4. For distributions: run package manager update (e.g., `apt update && apt upgrade linux-image-*` for Debian/Ubuntu, or `yum update kernel` for RHEL/CentOS)
  5. Reboot the system into the new fixed kernel version
  6. Verify the fix is applied by checking the kernel version matches or exceeds one of the fixed releases (4.19.316, 5.4.278, 5.10.219, or 5.15.161)
Caveat Kernel upgrades may require rebuilding out-of-tree kernel modules; ensure compatibility with system hardware and existing modules before rebooting

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,600. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-38567 in production — separate from our analysis above.

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