CVE-2022-50352
net: hns: fix possible memory leak in hnae_ae_register()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
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]
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 6fe6611ff275522a4e4c0359e2f46cdd07780d2f – < a3c148955c22fe1d94d7a2096005679c1f22eddf
- affected 6fe6611ff275522a4e4c0359e2f46cdd07780d2f – < 3b78453cca046d3b03853f0d077ad3ad130db886
- affected 6fe6611ff275522a4e4c0359e2f46cdd07780d2f – < 7ae1345f6ad715acbcdc9e1ac28153684fd498bb
- affected 6fe6611ff275522a4e4c0359e2f46cdd07780d2f – < dfc0337c6dceb6449403b33ecb141f4a1458a1e9
- affected 6fe6611ff275522a4e4c0359e2f46cdd07780d2f – < 2974f3b330ef25f5d34a4948d04290c2cd7802cf
- affected 6fe6611ff275522a4e4c0359e2f46cdd07780d2f – < 91f8f5342bee726ed5692583d58f69e7cc9ae60e
- affected 6fe6611ff275522a4e4c0359e2f46cdd07780d2f – < 02dc0db19d944b4a90941db505ecf1aaec714be4
- affected 6fe6611ff275522a4e4c0359e2f46cdd07780d2f – < ff2f5ec5d009844ec28f171123f9e58750cef4bf
- affected 4.4
- unaffected < 4.4
- unaffected 4.9.332 – ≤ 4.9.*
- unaffected 4.14.298 – ≤ 4.14.*
- unaffected 4.19.264 – ≤ 4.19.*
- unaffected 5.4.221 – ≤ 5.4.*
- unaffected 5.10.152 – ≤ 5.10.*
- unaffected 5.15.76 – ≤ 5.15.*
- unaffected 6.0.6 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (8)
- https://git.kernel.org/stable/c/a3c148955c22fe1d94d7a2096005679c1f22eddf (opens in a new tab)
- https://git.kernel.org/stable/c/3b78453cca046d3b03853f0d077ad3ad130db886 (opens in a new tab)
- https://git.kernel.org/stable/c/7ae1345f6ad715acbcdc9e1ac28153684fd498bb (opens in a new tab)
- https://git.kernel.org/stable/c/dfc0337c6dceb6449403b33ecb141f4a1458a1e9 (opens in a new tab)
- https://git.kernel.org/stable/c/2974f3b330ef25f5d34a4948d04290c2cd7802cf (opens in a new tab)
- https://git.kernel.org/stable/c/91f8f5342bee726ed5692583d58f69e7cc9ae60e (opens in a new tab)
- https://git.kernel.org/stable/c/02dc0db19d944b4a90941db505ecf1aaec714be4 (opens in a new tab)
- https://git.kernel.org/stable/c/ff2f5ec5d009844ec28f171123f9e58750cef4bf (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2022-50352)Record last updated .