CVE-2022-49235 (GCVE-0-2022-49235)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2025-10-01 19:47
VLAI?
Title
ath9k_htc: fix uninit value bugs
Summary
In the Linux kernel, the following vulnerability has been resolved: ath9k_htc: fix uninit value bugs Syzbot reported 2 KMSAN bugs in ath9k. All of them are caused by missing field initialization. In htc_connect_service() svc_meta_len and pad are not initialized. Based on code it looks like in current skb there is no service data, so simply initialize svc_meta_len to 0. htc_issue_send() does not initialize htc_frame_hdr::control array. Based on firmware code, it will initialize it by itself, so simply zero whole array to make KMSAN happy Fail logs: BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430 usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430 hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline] hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479 htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline] htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275 ... Uninit was created at: slab_post_alloc_hook mm/slab.h:524 [inline] slab_alloc_node mm/slub.c:3251 [inline] __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0x545/0xf90 net/core/skbuff.c:426 alloc_skb include/linux/skbuff.h:1126 [inline] htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258 ... Bytes 4-7 of 18 are uninitialized Memory access of size 18 starts at ffff888027377e00 BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430 usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430 hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline] hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479 htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline] htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275 ... Uninit was created at: slab_post_alloc_hook mm/slab.h:524 [inline] slab_alloc_node mm/slub.c:3251 [inline] __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0x545/0xf90 net/core/skbuff.c:426 alloc_skb include/linux/skbuff.h:1126 [inline] htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258 ... Bytes 16-17 of 18 are uninitialized Memory access of size 18 starts at ffff888027377e00
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 5c2a6a8daa17a3f65b38b9a5574bb362c13fa1d9 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < e352acdd378e9263cc4c6018e588f2dac7161d07 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < ee4222052a76559c20e821bc3519cefb58b6d3e9 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 4d244b731188e0b63fc40a9d2dec72e9181fb37c (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 11f11ac281f0c0b363d2940204f28bae0422ed71 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 0b700f7d06492de34964b6f414120043364f8191 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 7da6169b6ebb75816b57be3beb829afa74f3b4b6 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 5abf2b761b998063f5e2bae93fd4ab10e2a80f10 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < d1e0df1c57bd30871dd1c855742a7c346dbca853 (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.35
Unaffected: 0 , < 2.6.35 (semver)
Unaffected: 4.9.311 , ≤ 4.9.* (semver)
Unaffected: 4.14.276 , ≤ 4.14.* (semver)
Unaffected: 4.19.238 , ≤ 4.19.* (semver)
Unaffected: 5.4.189 , ≤ 5.4.* (semver)
Unaffected: 5.10.110 , ≤ 5.10.* (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nath9k_htc: fix uninit value bugs\n\nSyzbot reported 2 KMSAN bugs in ath9k. All of them are caused by missing\nfield initialization.\n\nIn htc_connect_service() svc_meta_len and pad are not initialized. Based\non code it looks like in current skb there is no service data, so simply\ninitialize svc_meta_len to 0.\n\nhtc_issue_send() does not initialize htc_frame_hdr::control array. Based\non firmware code, it will initialize it by itself, so simply zero whole\narray to make KMSAN happy\n\nFail logs:\n\nBUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430\n usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430\n hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline]\n hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479\n htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline]\n htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275\n...\n\nUninit was created at:\n slab_post_alloc_hook mm/slab.h:524 [inline]\n slab_alloc_node mm/slub.c:3251 [inline]\n __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974\n kmalloc_reserve net/core/skbuff.c:354 [inline]\n __alloc_skb+0x545/0xf90 net/core/skbuff.c:426\n alloc_skb include/linux/skbuff.h:1126 [inline]\n htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258\n...\n\nBytes 4-7 of 18 are uninitialized\nMemory access of size 18 starts at ffff888027377e00\n\nBUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430\n usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430\n hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline]\n hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479\n htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline]\n htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275\n...\n\nUninit was created at:\n slab_post_alloc_hook mm/slab.h:524 [inline]\n slab_alloc_node mm/slub.c:3251 [inline]\n __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974\n kmalloc_reserve net/core/skbuff.c:354 [inline]\n __alloc_skb+0x545/0xf90 net/core/skbuff.c:426\n alloc_skb include/linux/skbuff.h:1126 [inline]\n htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258\n...\n\nBytes 16-17 of 18 are uninitialized\nMemory access of size 18 starts at ffff888027377e00"
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\"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T16:10:55.077Z\"}}], \"cna\": {\"title\": \"ath9k_htc: fix uninit value bugs\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"fb9987d0f748c983bb795a86f47522313f701a08\", \"lessThan\": \"5c2a6a8daa17a3f65b38b9a5574bb362c13fa1d9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb9987d0f748c983bb795a86f47522313f701a08\", \"lessThan\": \"e352acdd378e9263cc4c6018e588f2dac7161d07\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb9987d0f748c983bb795a86f47522313f701a08\", \"lessThan\": \"ee4222052a76559c20e821bc3519cefb58b6d3e9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb9987d0f748c983bb795a86f47522313f701a08\", \"lessThan\": \"4d244b731188e0b63fc40a9d2dec72e9181fb37c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb9987d0f748c983bb795a86f47522313f701a08\", \"lessThan\": \"11f11ac281f0c0b363d2940204f28bae0422ed71\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb9987d0f748c983bb795a86f47522313f701a08\", \"lessThan\": \"0b700f7d06492de34964b6f414120043364f8191\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb9987d0f748c983bb795a86f47522313f701a08\", \"lessThan\": \"7da6169b6ebb75816b57be3beb829afa74f3b4b6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb9987d0f748c983bb795a86f47522313f701a08\", \"lessThan\": \"5abf2b761b998063f5e2bae93fd4ab10e2a80f10\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb9987d0f748c983bb795a86f47522313f701a08\", \"lessThan\": \"d1e0df1c57bd30871dd1c855742a7c346dbca853\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/wireless/ath/ath9k/htc_hst.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.35\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.35\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.311\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.276\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.238\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.189\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.110\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16.19\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.16.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/ath/ath9k/htc_hst.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5c2a6a8daa17a3f65b38b9a5574bb362c13fa1d9\"}, {\"url\": \"https://git.kernel.org/stable/c/e352acdd378e9263cc4c6018e588f2dac7161d07\"}, {\"url\": \"https://git.kernel.org/stable/c/ee4222052a76559c20e821bc3519cefb58b6d3e9\"}, {\"url\": \"https://git.kernel.org/stable/c/4d244b731188e0b63fc40a9d2dec72e9181fb37c\"}, {\"url\": \"https://git.kernel.org/stable/c/11f11ac281f0c0b363d2940204f28bae0422ed71\"}, {\"url\": \"https://git.kernel.org/stable/c/0b700f7d06492de34964b6f414120043364f8191\"}, {\"url\": \"https://git.kernel.org/stable/c/7da6169b6ebb75816b57be3beb829afa74f3b4b6\"}, {\"url\": \"https://git.kernel.org/stable/c/5abf2b761b998063f5e2bae93fd4ab10e2a80f10\"}, {\"url\": \"https://git.kernel.org/stable/c/d1e0df1c57bd30871dd1c855742a7c346dbca853\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nath9k_htc: fix uninit value bugs\\n\\nSyzbot reported 2 KMSAN bugs in ath9k. All of them are caused by missing\\nfield initialization.\\n\\nIn htc_connect_service() svc_meta_len and pad are not initialized. Based\\non code it looks like in current skb there is no service data, so simply\\ninitialize svc_meta_len to 0.\\n\\nhtc_issue_send() does not initialize htc_frame_hdr::control array. Based\\non firmware code, it will initialize it by itself, so simply zero whole\\narray to make KMSAN happy\\n\\nFail logs:\\n\\nBUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430\\n usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430\\n hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline]\\n hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479\\n htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline]\\n htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275\\n...\\n\\nUninit was created at:\\n slab_post_alloc_hook mm/slab.h:524 [inline]\\n slab_alloc_node mm/slub.c:3251 [inline]\\n __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974\\n kmalloc_reserve net/core/skbuff.c:354 [inline]\\n __alloc_skb+0x545/0xf90 net/core/skbuff.c:426\\n alloc_skb include/linux/skbuff.h:1126 [inline]\\n htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258\\n...\\n\\nBytes 4-7 of 18 are uninitialized\\nMemory access of size 18 starts at ffff888027377e00\\n\\nBUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430\\n usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430\\n hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline]\\n hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479\\n htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline]\\n htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275\\n...\\n\\nUninit was created at:\\n slab_post_alloc_hook mm/slab.h:524 [inline]\\n slab_alloc_node mm/slub.c:3251 [inline]\\n __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974\\n kmalloc_reserve net/core/skbuff.c:354 [inline]\\n __alloc_skb+0x545/0xf90 net/core/skbuff.c:426\\n alloc_skb include/linux/skbuff.h:1126 [inline]\\n htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258\\n...\\n\\nBytes 16-17 of 18 are uninitialized\\nMemory access of size 18 starts at ffff888027377e00\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.311\", \"versionStartIncluding\": \"2.6.35\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.276\", \"versionStartIncluding\": \"2.6.35\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.238\", \"versionStartIncluding\": \"2.6.35\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.189\", \"versionStartIncluding\": \"2.6.35\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.110\", \"versionStartIncluding\": \"2.6.35\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.33\", \"versionStartIncluding\": \"2.6.35\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16.19\", \"versionStartIncluding\": \"2.6.35\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.2\", \"versionStartIncluding\": \"2.6.35\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18\", \"versionStartIncluding\": \"2.6.35\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:33:02.591Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49235\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T19:47:03.159Z\", \"dateReserved\": \"2025-02-26T01:49:39.294Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T01:56:00.212Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

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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