net: hns: fix possible memory leak in hnae_ae_register()
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: 2 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-401.
Summary
In the Linux kernel, the following vulnerability has been resolved: net: hns: fix possible memory leak in hnae_ae_register() Inject fault while probing module, if device_register() fails, but the refcount of kobject is not decreased to 0, the name allocated in dev_set_name() is leaked. Fix this by calling put_device(), so that name can be freed in callback function kobject_cleanup(). unreferenced object 0xffff00c01aba2100 (size 128): comm "systemd-udevd", pid 1259, jiffies 4294903284 (age 294.152s) hex dump (first 32 bytes): 68 6e 61 65 30 00 00 00 18 21 ba 1a c0 00 ff ff hnae0....!...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000034783f26>] slab_post_alloc_hook+0xa0/0x3e0 [<00000000748188f2>] __kmem_cache_alloc_node+0x164/0x2b0 [<00000000ab0743e8>] __kmalloc_node_track_caller+0x6c/0x390 [<000000006c0ffb13>] kvasprintf+0x8c/0x118 [<00000000fa27bfe1>] kvasprintf_const+0x60/0xc8 [<0000000083e10ed7>] kobject_set_name_vargs+0x3c/0xc0 [<000000000b87affc>] dev_set_name+0x7c/0xa0 [<000000003fd8fe26>] hnae_ae_register+0xcc/0x190 [hnae] [<00000000fe97edc9>] hns_dsaf_ae_init+0x9c/0x108 [hns_dsaf] [<00000000c36ff1eb>] hns_dsaf_probe+0x548/0x748 [hns_dsaf]
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 | 4.4 and later | 4.9.332, 4.14.298, 4.19.264, 5.4.221, 5.10.152, 5.15.76, 6.0.6, 6.1 | Patch available | CNA |
- Linux VendorLinux Affected 4.4 and later Fixed in 4.9.332, 4.14.298, 4.19.264, 5.4.221, 5.10.152, 5.15.76, 6.0.6, 6.1 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.4 to before 4.9.332; 4.10 to before 4.14.298; 4.15 to before 4.19.264; 4.20 to before 5.4.221; 5.5 to before 5.10.152; 5.11 to before 5.15.76; 5.16 to before 6.0.6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* | 6.1 rc1 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.4 to before 4.9.332; 4.10 to before 4.14.298; 4.15 to before 4.19.264; 4.20 to before 5.4.221; 5.5 to before 5.10.152; 5.11 to before 5.15.76; 5.16 to before 6.0.6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* Versions 6.1 rc1 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.9.332, 4.14.298, 4.19.264, 5.4.221, 5.10.152, 5.15.76, 6.0.6, 6.1
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2022-50352
- 2026-10-03 Alias added: GHSA-x55j-xpqj-9hr9
References
Patch 8
- https://git.kernel.org/stable/c/a3c148955c22fe1d94d7a2096005679c1f22eddf
- https://git.kernel.org/stable/c/3b78453cca046d3b03853f0d077ad3ad130db886
- https://git.kernel.org/stable/c/7ae1345f6ad715acbcdc9e1ac28153684fd498bb
- https://git.kernel.org/stable/c/dfc0337c6dceb6449403b33ecb141f4a1458a1e9
- https://git.kernel.org/stable/c/2974f3b330ef25f5d34a4948d04290c2cd7802cf
- https://git.kernel.org/stable/c/91f8f5342bee726ed5692583d58f69e7cc9ae60e
- https://git.kernel.org/stable/c/02dc0db19d944b4a90941db505ecf1aaec714be4
- https://git.kernel.org/stable/c/ff2f5ec5d009844ec28f171123f9e58750cef4bf
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- 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
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- 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-2022-50352 · CVE Program
- CVE-2022-50352 · NVD
- FIRST EPSS
- GHSA-x55j-xpqj-9hr9 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-50352 · 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