USB: class: cdc-wdm: Fix CPU lockup caused by excessive log messages
In the Linux kernel, the following vulnerability has been resolved: USB: class: cdc-wdm: Fix CPU lockup caused by excessive log messages The syzbot fuzzer found that the interrupt-URB completion callback in the cdc-wdm driver was taking too long, and the driver's immediate resubmission of interrupt URBs with -EPROTO status combined with the dummy-hcd emulation to cause a CPU lockup: cdc_wdm 1-1:1.0: nonzero urb status received: -71 cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor782:6625] CPU#0 Utilization every 4s during lockup: #1: 98% system, 0% softirq, 3% hardirq, 0% idle #2: 98% system, 0% softirq, 3% hardirq, 0% idle #3: 98% system, 0% softirq, 3% hardirq, 0% idle #4: 98% system, 0% softirq, 3% hardirq, 0% idle #5: 98% system, 1% softirq, 3% hardirq, 0% idle Modules linked in: irq event stamp: 73096 hardirqs last enabled at (73095): [<ffff80008037bc00>] console_emit_next_record kernel/printk/printk.c:2935 [inline] hardirqs last enabled at (73095): [<ffff80008037bc00>] console_flush_all+0x650/0xb74 kernel/printk/printk.c:2994 hardirqs last disabled at (73096): [<ffff80008af10b00>] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (73096): [<ffff80008af10b00>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last enabled at (73048): [<ffff8000801ea530>] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (73048): [<ffff8000801ea530>] handle_softirqs+0xa60/0xc34 kernel/softirq.c:582 softirqs last disabled at (73043): [<ffff800080020de8>] __do_softirq+0x14/0x20 kernel/softirq.c:588 CPU: 0 PID: 6625 Comm: syz-executor782 Tainted: G W 6.10.0-rc2-syzkaller-g8867bbd4a056 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Testing showed that the problem did not occur if the two error messages -- the first two lines above -- were removed; apparently adding material to the kernel log takes a surprisingly large amount of time. In any case, the best approach for preventing these lockups and to avoid spamming the log with thousands of error messages per second is to ratelimit the two dev_err() calls. Therefore we replace them with dev_err_ratelimited().
- Published
- Jul 12, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.3% · 20th percentile
- CWE
- —
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Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel2.6.28 and later · before 4.19.317
- linux linux kernel4.20 and later · before 5.4.279
- linux linux kernel5.5 and later · before 5.10.221
- linux linux kernel5.11 and later · before 5.15.162
- linux linux kernel5.16 and later · before 6.1.95
- linux linux kernel6.2 and later · before 6.6.35
- linux linux kernel6.7 and later · before 6.9.6
- linux linux kernel6.10
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 2.6.28affected
- 9908a32e94de2141463e104c9924279ed3509447 and later · before 217d1f44fff560b3995a685a60aa66e55a7f0f56affected · git
- 9908a32e94de2141463e104c9924279ed3509447 and later · before 05b2cd6d33f700597e6f081b53c668a226a96d28affected · git
- 9908a32e94de2141463e104c9924279ed3509447 and later · before c0747d76eb05542b5d49f67069b64ef5ff732c6caffected · git
- 9908a32e94de2141463e104c9924279ed3509447 and later · before 53250b54c92fe087fd4b0c48f85529efe1ebd879affected · git
- 9908a32e94de2141463e104c9924279ed3509447 and later · before 02a4c0499fc3a02e992b4c69a9809912af372d94affected · git
- 9908a32e94de2141463e104c9924279ed3509447 and later · before 72a3fe36cf9f0d030865e571f45a40f9c1e07e8aaffected · git
- 9908a32e94de2141463e104c9924279ed3509447 and later · before 82075aff7ffccb1e72b0ac8aa349e473624d857caffected · git
- 9908a32e94de2141463e104c9924279ed3509447 and later · before 22f00812862564b314784167a89f27b444f82a46affected · git
- before 2.6.28not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:9 | bpftool | before 7.3.0-427.42.1.el9_4 | 7.3.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-core | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-core | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-devel | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-devel-matched | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-modules | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-modules-core | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-modules-extra | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-devel | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-devel-matched | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-modules | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-modules-core | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-64k-modules-extra | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-abi-stablelists | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-core | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-cross-headers | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-debug | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-debug-core | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-debug-devel | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-debug-devel-matched | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
| AlmaLinux:9 | kernel-debug-modules | before 5.14.0-427.42.1.el9_4 | 5.14.0-427.42.1.el9_4 |
+96
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 02a4c0499fc3a02e992b4c69a9809912af372d94 | Vendor (CNA) |
| Linux Linux | 05b2cd6d33f700597e6f081b53c668a226a96d28 | Vendor (CNA) |
| Linux Linux | 217d1f44fff560b3995a685a60aa66e55a7f0f56 | Vendor (CNA) |
| Linux Linux | 22f00812862564b314784167a89f27b444f82a46 | Vendor (CNA) |
| Linux Linux | 53250b54c92fe087fd4b0c48f85529efe1ebd879 | Vendor (CNA) |
| Linux Linux | 72a3fe36cf9f0d030865e571f45a40f9c1e07e8a | Vendor (CNA) |
| Linux Linux | 82075aff7ffccb1e72b0ac8aa349e473624d857c | Vendor (CNA) |
| Linux Linux | c0747d76eb05542b5d49f67069b64ef5ff732c6c | Vendor (CNA) |
| almalinux:bpftool | 7.3.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-core | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-core | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-devel | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-devel-matched | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-modules | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-modules-core | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-modules-extra | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-devel | 5.14.0-427.42.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| debian:linux | 6.1.99-1 · Debian:12 | Package registry (OSV) |
| red hat:bpftool-debuginfo | 0:7.3.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:kernel-64k-debug-debuginfo | 0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:kernel-64k-debug-devel | 0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:kernel-64k-debug-devel-matched | 0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:kernel-64k-debuginfo | 0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:kernel-64k-devel | 0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:kernel-64k-devel-matched | 0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:kernel-debug-debuginfo | 0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:kernel-debug-devel | 0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
+4
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-24-0942 · Jul 16, 2024(Linux Kernel Güncellemesi)
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/02a4c0499fc3a02e992b4c69a9809912af372d94
- git.kernel.org/stable/c/05b2cd6d33f700597e6f081b53c668a226a96d28
- git.kernel.org/stable/c/217d1f44fff560b3995a685a60aa66e55a7f0f56
- git.kernel.org/stable/c/22f00812862564b314784167a89f27b444f82a46
- git.kernel.org/stable/c/53250b54c92fe087fd4b0c48f85529efe1ebd879
- git.kernel.org/stable/c/72a3fe36cf9f0d030865e571f45a40f9c1e07e8a
- git.kernel.org/stable/c/82075aff7ffccb1e72b0ac8aa349e473624d857c
- git.kernel.org/stable/c/c0747d76eb05542b5d49f67069b64ef5ff732c6c
- lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.