FKIE_CVE-2022-50566
Vulnerability from fkie_nvd - Published: 2025-10-22 14:15 - Updated: 2026-06-17 05:23
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
mtd: Fix device name leak when register device failed in add_mtd_device()
There is a kmemleak when register device failed:
unreferenced object 0xffff888101aab550 (size 8):
comm "insmod", pid 3922, jiffies 4295277753 (age 925.408s)
hex dump (first 8 bytes):
6d 74 64 30 00 88 ff ff mtd0....
backtrace:
[<00000000bde26724>] __kmalloc_node_track_caller+0x4e/0x150
[<000000003c32b416>] kvasprintf+0xb0/0x130
[<000000001f7a8f15>] kobject_set_name_vargs+0x2f/0xb0
[<000000006e781163>] dev_set_name+0xab/0xe0
[<00000000e30d0c78>] add_mtd_device+0x4bb/0x700
[<00000000f3d34de7>] mtd_device_parse_register+0x2ac/0x3f0
[<00000000c0d88488>] 0xffffffffa0238457
[<00000000b40d0922>] 0xffffffffa02a008f
[<0000000023d17b9d>] do_one_initcall+0x87/0x2a0
[<00000000770f6ca6>] do_init_module+0xdf/0x320
[<000000007b6768fe>] load_module+0x2f98/0x3330
[<00000000346bed5a>] __do_sys_finit_module+0x113/0x1b0
[<00000000674c2290>] do_syscall_64+0x35/0x80
[<000000004c6a8d97>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
If register device failed, should call put_device() to give up the
reference.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/mtd/mtdcore.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "a75f45afa932bfb24a2603ebcea5efd2e7cdcfd6",
"status": "affected",
"version": "1f24b5a8ecbb2a3c7080f418974d40e3ffedb221",
"versionType": "git"
},
{
"lessThan": "2302e2dc42b1f84f951c725ce742fc21c5a1e151",
"status": "affected",
"version": "1f24b5a8ecbb2a3c7080f418974d40e3ffedb221",
"versionType": "git"
},
{
"lessThan": "db07fe76df01f40cb897d6e9066b84e46957beb3",
"status": "affected",
"version": "1f24b5a8ecbb2a3c7080f418974d40e3ffedb221",
"versionType": "git"
},
{
"lessThan": "fa0d32ab8407d7481450c664fd0de64f2dae9489",
"status": "affected",
"version": "1f24b5a8ecbb2a3c7080f418974d40e3ffedb221",
"versionType": "git"
},
{
"lessThan": "330bc5533e8a8ed69cb951d5a8edce9bddb9db21",
"status": "affected",
"version": "1f24b5a8ecbb2a3c7080f418974d40e3ffedb221",
"versionType": "git"
},
{
"lessThan": "71212d73184845c944ef1b43f092e643e5bde003",
"status": "affected",
"version": "1f24b5a8ecbb2a3c7080f418974d40e3ffedb221",
"versionType": "git"
},
{
"lessThan": "1b172fb05d6315ecec082fd7544a3390e96f0d7e",
"status": "affected",
"version": "1f24b5a8ecbb2a3c7080f418974d40e3ffedb221",
"versionType": "git"
},
{
"lessThan": "bcabe1dc2a344adbb3382930a23e273ba9382277",
"status": "affected",
"version": "1f24b5a8ecbb2a3c7080f418974d40e3ffedb221",
"versionType": "git"
},
{
"lessThan": "895d68a39481a75c680aa421546931fb11942fa6",
"status": "affected",
"version": "1f24b5a8ecbb2a3c7080f418974d40e3ffedb221",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/mtd/mtdcore.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.30"
},
{
"lessThan": "2.6.30",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.337",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.303",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.270",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.229",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.163",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.86",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.16",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: Fix device name leak when register device failed in add_mtd_device()\n\nThere is a kmemleak when register device failed:\n unreferenced object 0xffff888101aab550 (size 8):\n comm \"insmod\", pid 3922, jiffies 4295277753 (age 925.408s)\n hex dump (first 8 bytes):\n 6d 74 64 30 00 88 ff ff mtd0....\n backtrace:\n [\u003c00000000bde26724\u003e] __kmalloc_node_track_caller+0x4e/0x150\n [\u003c000000003c32b416\u003e] kvasprintf+0xb0/0x130\n [\u003c000000001f7a8f15\u003e] kobject_set_name_vargs+0x2f/0xb0\n [\u003c000000006e781163\u003e] dev_set_name+0xab/0xe0\n [\u003c00000000e30d0c78\u003e] add_mtd_device+0x4bb/0x700\n [\u003c00000000f3d34de7\u003e] mtd_device_parse_register+0x2ac/0x3f0\n [\u003c00000000c0d88488\u003e] 0xffffffffa0238457\n [\u003c00000000b40d0922\u003e] 0xffffffffa02a008f\n [\u003c0000000023d17b9d\u003e] do_one_initcall+0x87/0x2a0\n [\u003c00000000770f6ca6\u003e] do_init_module+0xdf/0x320\n [\u003c000000007b6768fe\u003e] load_module+0x2f98/0x3330\n [\u003c00000000346bed5a\u003e] __do_sys_finit_module+0x113/0x1b0\n [\u003c00000000674c2290\u003e] do_syscall_64+0x35/0x80\n [\u003c000000004c6a8d97\u003e] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nIf register device failed, should call put_device() to give up the\nreference."
}
],
"id": "CVE-2022-50566",
"lastModified": "2026-06-17T05:23:48.233",
"metrics": {},
"published": "2025-10-22T14:15:41.420",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/1b172fb05d6315ecec082fd7544a3390e96f0d7e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2302e2dc42b1f84f951c725ce742fc21c5a1e151"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/330bc5533e8a8ed69cb951d5a8edce9bddb9db21"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/71212d73184845c944ef1b43f092e643e5bde003"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/895d68a39481a75c680aa421546931fb11942fa6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a75f45afa932bfb24a2603ebcea5efd2e7cdcfd6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/bcabe1dc2a344adbb3382930a23e273ba9382277"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/db07fe76df01f40cb897d6e9066b84e46957beb3"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/fa0d32ab8407d7481450c664fd0de64f2dae9489"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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