CVE-2022-50829 (GCVE-0-2022-50829)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:10 – Updated: 2025-12-30 12:10
VLAI?
Title
wifi: ath9k: hif_usb: Fix use-after-free in ath9k_hif_usb_reg_in_cb()
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3deff76095c4ac4252e27c537db3041f619c23a2 , < 5e8751a977a49a6e00cce1a8da5ca16da83f9c8c (git)
Affected: 3deff76095c4ac4252e27c537db3041f619c23a2 , < f127c2b4c967025e5c3a4ce7e13b79135d46a33d (git)
Affected: 3deff76095c4ac4252e27c537db3041f619c23a2 , < 0c8dd2ea4b419da96ab4953e4967e9363e2f8a4f (git)
Affected: 3deff76095c4ac4252e27c537db3041f619c23a2 , < 988bd27de2484faf17afe0408db2e3d9e5ac61fc (git)
Affected: 3deff76095c4ac4252e27c537db3041f619c23a2 , < 98d9172822dc6f38138333941984bd759a89d419 (git)
Affected: 3deff76095c4ac4252e27c537db3041f619c23a2 , < 355f16f756aad0c95cdaa0c14a34ab4137d32815 (git)
Affected: 3deff76095c4ac4252e27c537db3041f619c23a2 , < 53b9bb1a00c4285ee7f58a11129dbea015db61bc (git)
Affected: 3deff76095c4ac4252e27c537db3041f619c23a2 , < 71fc0ad671a62c494d2aec731baeabd3bfe6c95d (git)
Affected: 3deff76095c4ac4252e27c537db3041f619c23a2 , < dd95f2239fc846795fc926787c3ae0ca701c9840 (git)
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    Linux Linux Affected: 3.0
Unaffected: 0 , < 3.0 (semver)
Unaffected: 4.9.337 , ≤ 4.9.* (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
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            "drivers/net/wireless/ath/ath9k/hif_usb.c"
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      "title": "wifi: ath9k: hif_usb: Fix use-after-free in ath9k_hif_usb_reg_in_cb()",
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    "dateReserved": "2025-12-30T12:06:07.132Z",
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    "state": "PUBLISHED"
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  }
}


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  • 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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