CVE-2022-50829 (GCVE-0-2022-50829)
Vulnerability from cvelistv5
Published
2025-12-30 12:10
Modified
2025-12-30 12:10
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath9k: hif_usb: Fix use-after-free in ath9k_hif_usb_reg_in_cb()
It is possible that skb is freed in ath9k_htc_rx_msg(), then
usb_submit_urb() fails and we try to free skb again. It causes
use-after-free bug. Moreover, if alloc_skb() fails, urb->context becomes
NULL but rx_buf is not freed and there can be a memory leak.
The patch removes unnecessary nskb and makes skb processing more clear: it
is supposed that ath9k_htc_rx_msg() either frees old skb or passes its
managing to another callback function.
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 3deff76095c4ac4252e27c537db3041f619c23a2 Version: 3deff76095c4ac4252e27c537db3041f619c23a2 Version: 3deff76095c4ac4252e27c537db3041f619c23a2 Version: 3deff76095c4ac4252e27c537db3041f619c23a2 Version: 3deff76095c4ac4252e27c537db3041f619c23a2 Version: 3deff76095c4ac4252e27c537db3041f619c23a2 Version: 3deff76095c4ac4252e27c537db3041f619c23a2 Version: 3deff76095c4ac4252e27c537db3041f619c23a2 Version: 3deff76095c4ac4252e27c537db3041f619c23a2 |
||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/ath/ath9k/hif_usb.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "3deff76095c4ac4252e27c537db3041f619c23a2",
"versionType": "git"
},
{
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},
{
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"versionType": "git"
},
{
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"versionType": "git"
},
{
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}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/ath/ath9k/hif_usb.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.0"
},
{
"lessThan": "3.0",
"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"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.9.337",
"versionStartIncluding": "3.0",
"vulnerable": true
},
{
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"versionStartIncluding": "3.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
{
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},
{
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{
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},
{
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},
{
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},
{
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"versionEndExcluding": "6.2",
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: hif_usb: Fix use-after-free in ath9k_hif_usb_reg_in_cb()\n\nIt is possible that skb is freed in ath9k_htc_rx_msg(), then\nusb_submit_urb() fails and we try to free skb again. It causes\nuse-after-free bug. Moreover, if alloc_skb() fails, urb-\u003econtext becomes\nNULL but rx_buf is not freed and there can be a memory leak.\n\nThe patch removes unnecessary nskb and makes skb processing more clear: it\nis supposed that ath9k_htc_rx_msg() either frees old skb or passes its\nmanaging to another callback function.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."
}
],
"providerMetadata": {
"dateUpdated": "2025-12-30T12:10:51.434Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/5e8751a977a49a6e00cce1a8da5ca16da83f9c8c"
},
{
"url": "https://git.kernel.org/stable/c/f127c2b4c967025e5c3a4ce7e13b79135d46a33d"
},
{
"url": "https://git.kernel.org/stable/c/0c8dd2ea4b419da96ab4953e4967e9363e2f8a4f"
},
{
"url": "https://git.kernel.org/stable/c/988bd27de2484faf17afe0408db2e3d9e5ac61fc"
},
{
"url": "https://git.kernel.org/stable/c/98d9172822dc6f38138333941984bd759a89d419"
},
{
"url": "https://git.kernel.org/stable/c/355f16f756aad0c95cdaa0c14a34ab4137d32815"
},
{
"url": "https://git.kernel.org/stable/c/53b9bb1a00c4285ee7f58a11129dbea015db61bc"
},
{
"url": "https://git.kernel.org/stable/c/71fc0ad671a62c494d2aec731baeabd3bfe6c95d"
},
{
"url": "https://git.kernel.org/stable/c/dd95f2239fc846795fc926787c3ae0ca701c9840"
}
],
"title": "wifi: ath9k: hif_usb: Fix use-after-free in ath9k_hif_usb_reg_in_cb()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-50829",
"datePublished": "2025-12-30T12:10:51.434Z",
"dateReserved": "2025-12-30T12:06:07.132Z",
"dateUpdated": "2025-12-30T12:10:51.434Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2022-50829\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-30T13:15:57.377\",\"lastModified\":\"2025-12-31T20:43:05.160\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: ath9k: hif_usb: Fix use-after-free in ath9k_hif_usb_reg_in_cb()\\n\\nIt is possible that skb is freed in ath9k_htc_rx_msg(), then\\nusb_submit_urb() fails and we try to free skb again. It causes\\nuse-after-free bug. Moreover, if alloc_skb() fails, urb-\u003econtext becomes\\nNULL but rx_buf is not freed and there can be a memory leak.\\n\\nThe patch removes unnecessary nskb and makes skb processing more clear: it\\nis supposed that ath9k_htc_rx_msg() either frees old skb or passes its\\nmanaging to another callback function.\\n\\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0c8dd2ea4b419da96ab4953e4967e9363e2f8a4f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/355f16f756aad0c95cdaa0c14a34ab4137d32815\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/53b9bb1a00c4285ee7f58a11129dbea015db61bc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5e8751a977a49a6e00cce1a8da5ca16da83f9c8c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/71fc0ad671a62c494d2aec731baeabd3bfe6c95d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/988bd27de2484faf17afe0408db2e3d9e5ac61fc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/98d9172822dc6f38138333941984bd759a89d419\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dd95f2239fc846795fc926787c3ae0ca701c9840\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f127c2b4c967025e5c3a4ce7e13b79135d46a33d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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