hwmon: (coretemp) Check for null before removing sysfs attrs
Noroxi assessment
Priority: Monitor (action score 22/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.23% (FIRST EPSS).
- 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.
- Fixed version: Linux Linux 070d5ea4a0592a37ad96ce7f7b6b024f90bb009f, 280110db1a7d62ad635b103bafc3ae96e8bef75c, 7692700ac818866d138a8de555130a6e70e6ac16.
Low priority for now. Upgrade to Linux Linux 070d5ea4a0592a37ad96ce7f7b6b024f90bb009f, 280110db1a7d62ad635b103bafc3ae96e8bef75c, 7692700ac818866d138a8de555130a6e70e6ac16 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
In the Linux kernel, the following vulnerability has been resolved: hwmon: (coretemp) Check for null before removing sysfs attrs If coretemp_add_core() gets an error then pdata->core_data[indx] is already NULL and has been kfreed. Don't pass that to sysfs_remove_group() as that will crash in sysfs_remove_group(). [Shortened for readability] [91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label' <cpu offline> [91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188 [91855.165103] #PF: supervisor read access in kernel mode [91855.194506] #PF: error_code(0x0000) - not-present page [91855.224445] PGD 0 P4D 0 [91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI ... [91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80 ... [91855.796571] Call Trace: [91855.810524] coretemp_cpu_offline+0x12b/0x1dd [coretemp] [91855.841738] ? coretemp_cpu_online+0x180/0x180 [coretemp] [91855.871107] cpuhp_invoke_callback+0x105/0x4b0 [91855.893432] cpuhp_thread_fun+0x8e/0x150 ... Fix this by checking for NULL first.
- Published
- Oct 21, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 13th percentile
- CWE
- CWE-476
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 · 0.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| 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 kernel3.0 and later · before 4.9.335
- linux linux kernel4.10 and later · before 4.14.301
- linux linux kernel4.15 and later · before 4.19.268
- linux linux kernel4.20 and later · before 5.4.226
- linux linux kernel5.5 and later · before 5.10.158
- linux linux kernel5.11 and later · before 5.15.82
- linux linux kernel5.16 and later · before 6.0.12
- linux linux kernel6.1
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
- 3.0affected
- 199e0de7f5df31a4fc485d4aaaf8a07718252ace and later · before fb503d077ff7b43913503eaf72995d1239028b99affected · git
- 199e0de7f5df31a4fc485d4aaaf8a07718252ace and later · before 070d5ea4a0592a37ad96ce7f7b6b024f90bb009faffected · git
- 199e0de7f5df31a4fc485d4aaaf8a07718252ace and later · before 280110db1a7d62ad635b103bafc3ae96e8bef75caffected · git
- 199e0de7f5df31a4fc485d4aaaf8a07718252ace and later · before 89eecabe6a47403237f45aafd7d24f93cb973653affected · git
- 199e0de7f5df31a4fc485d4aaaf8a07718252ace and later · before f06e0cd01eab954bd5f2190c9faa79bb5357e05baffected · git
- 199e0de7f5df31a4fc485d4aaaf8a07718252ace and later · before 7692700ac818866d138a8de555130a6e70e6ac16affected · git
- 199e0de7f5df31a4fc485d4aaaf8a07718252ace and later · before ae6c8b6e5d5628df1c475c0a8fca1465e205c95baffected · git
- 199e0de7f5df31a4fc485d4aaaf8a07718252ace and later · before a89ff5f5cc64b9fe7a992cf56988fd36f56ca82aaffected · git
- before 3.0not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.0.12-1 | 6.0.12-1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-64kb | before 5.3.18-150300.59.185.1 | 5.3.18-150300.59.185.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default-base | before 5.3.18-150300.59.185.1.150300.18.109.1 | 5.3.18-150300.59.185.1.150300.18.109.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-docs | before 5.3.18-150300.59.185.1 | 5.3.18-150300.59.185.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-obs-build | before 5.3.18-150300.59.185.1 | 5.3.18-150300.59.185.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-preempt | before 5.3.18-150300.59.185.1 | 5.3.18-150300.59.185.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | before 5.3.18-150300.59.185.1 | 5.3.18-150300.59.185.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-syms | before 5.3.18-150300.59.185.1 | 5.3.18-150300.59.185.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-default | before 5.3.18-150300.59.185.1 | 5.3.18-150300.59.185.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_51 | before 1-150300.7.3.1 | 1-150300.7.3.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-rt | before 5.3.18-150300.194.1 | 5.3.18-150300.194.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-source-rt | before 5.3.18-150300.194.1 | 5.3.18-150300.194.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-zfcpdump | before 5.3.18-150300.59.185.1 | 5.3.18-150300.59.185.1 |
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 | 070d5ea4a0592a37ad96ce7f7b6b024f90bb009f | Vendor (CNA) |
| Linux Linux | 280110db1a7d62ad635b103bafc3ae96e8bef75c | Vendor (CNA) |
| Linux Linux | 7692700ac818866d138a8de555130a6e70e6ac16 | Vendor (CNA) |
| Linux Linux | 89eecabe6a47403237f45aafd7d24f93cb973653 | Vendor (CNA) |
| Linux Linux | a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a | Vendor (CNA) |
| Linux Linux | ae6c8b6e5d5628df1c475c0a8fca1465e205c95b | Vendor (CNA) |
| Linux Linux | f06e0cd01eab954bd5f2190c9faa79bb5357e05b | Vendor (CNA) |
| Linux Linux | fb503d077ff7b43913503eaf72995d1239028b99 | Vendor (CNA) |
| debian:linux | 6.0.12-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-64kb | 5.3.18-150300.59.185.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-default | 5.3.18-150300.59.185.1 · SUSE:Linux Enterprise Live Patching 15 SP3 | Package registry (OSV) |
| suse:kernel-default-base | 5.3.18-150300.59.185.1.150300.18.109.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-docs | 5.3.18-150300.59.185.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP3_Update_51 | 1-150300.7.3.1 · SUSE:Linux Enterprise Live Patching 15 SP3 | Package registry (OSV) |
| suse:kernel-obs-build | 5.3.18-150300.59.185.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-preempt | 5.3.18-150300.59.185.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-rt | 5.3.18-150300.194.1 · SUSE:Linux Enterprise Micro 5.1 | Package registry (OSV) |
| suse:kernel-source | 5.3.18-150300.59.185.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-source-rt | 5.3.18-150300.194.1 · SUSE:Linux Enterprise Micro 5.1 | Package registry (OSV) |
| suse:kernel-syms | 5.3.18-150300.59.185.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-zfcpdump | 5.3.18-150300.59.185.1 · SUSE:Linux Enterprise Server 15 SP3-LTSS | Package registry (OSV) |
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).
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)
CWE-476 · NULL Pointer DereferenceCVSS 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
Show all references (7 more)Show less
- git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c
- git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16
- git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653
- git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a
- git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b
- git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b
- git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99
Vendor advisories and official records. Exploit/PoC links are deliberately left out.