thermal: int340x: fix memory leak in int3400_notify()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-401.
Summary
In the Linux kernel, the following vulnerability has been resolved: thermal: int340x: fix memory leak in int3400_notify() It is easy to hit the below memory leaks in my TigerLake platform: unreferenced object 0xffff927c8b91dbc0 (size 32): comm "kworker/0:2", pid 112, jiffies 4294893323 (age 83.604s) hex dump (first 32 bytes): 4e 41 4d 45 3d 49 4e 54 33 34 30 30 20 54 68 65 NAME=INT3400 The 72 6d 61 6c 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 rmal.kkkkkkkkkk. backtrace: [<ffffffff9c502c3e>] __kmalloc_track_caller+0x2fe/0x4a0 [<ffffffff9c7b7c15>] kvasprintf+0x65/0xd0 [<ffffffff9c7b7d6e>] kasprintf+0x4e/0x70 [<ffffffffc04cb662>] int3400_notify+0x82/0x120 [int3400_thermal] [<ffffffff9c8b7358>] acpi_ev_notify_dispatch+0x54/0x71 [<ffffffff9c88f1a7>] acpi_os_execute_deferred+0x17/0x30 [<ffffffff9c2c2c0a>] process_one_work+0x21a/0x3f0 [<ffffffff9c2c2e2a>] worker_thread+0x4a/0x3b0 [<ffffffff9c2cb4dd>] kthread+0xfd/0x130 [<ffffffff9c201c1f>] ret_from_fork+0x1f/0x30 Fix it by calling kfree() accordingly.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 4.14 and later | 4.14.274, 4.19.237, 5.4.188, 5.10.103, 5.15.26, 5.16.12, 5.17 | Patch available | CNA |
- Linux VendorLinux Affected 4.14 and later Fixed in 4.14.274, 4.19.237, 5.4.188, 5.10.103, 5.15.26, 5.16.12, 5.17 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.14 to before 4.14.274; 4.15 to before 4.19.237; 4.20 to before 5.4.188; 5.5 to before 5.10.103; 5.11 to before 5.15.26; 5.16 to before 5.16.12 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.14 to before 4.14.274; 4.15 to before 4.19.237; 4.20 to before 5.4.188; 5.5 to before 5.10.103; 5.11 to before 5.15.26; 5.16 to before 5.16.12 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.14.274, 4.19.237, 5.4.188, 5.10.103, 5.15.26, 5.16.12, 5.17
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2022-48924
- 2026-10-03 Alias added: GHSA-vm7f-w6gx-mxh8
References
Patch 7
- https://git.kernel.org/stable/c/f0ddc5184b0127038d05008e2a69f89d1e13f980
- https://git.kernel.org/stable/c/c3fa6d1937a8d0828131a04ae2cd2c30d0668693
- https://git.kernel.org/stable/c/2e798814e01827871938ff172d2b2ccf1e74b355
- https://git.kernel.org/stable/c/e098933866f9e1dd3ef4eebbe2e3d504f970f599
- https://git.kernel.org/stable/c/ba9efbbf6745750d34c1e87c9539ce9db645ca0a
- https://git.kernel.org/stable/c/33c73a4d7e7b19313a6b417152f5365016926418
- https://git.kernel.org/stable/c/3abea10e6a8f0e7804ed4c124bea2d15aca977c8
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2022-48924 · CVE Program
- CVE-2022-48924 · NVD
- FIRST EPSS
- GHSA-vm7f-w6gx-mxh8 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-48924 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences