{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49112", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T01:49:39.261Z", "datePublished": "2025-02-26T01:54:57.109Z", "dateUpdated": "2025-05-04T08:30:08.471Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:30:08.471Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: fix monitor mode crash with sdio driver\n\nmt7921s driver may receive frames with fragment buffers. If there is a\nCTS packet received in monitor mode, the payload is 10 bytes only and\nneed 6 bytes header padding after RXD buffer. However, only RXD in the\nfirst linear buffer, if we pull buffer size RXD-size+6 bytes with\nskb_pull(), that would trigger \"BUG_ON(skb->len < skb->data_len)\" in\n__skb_pull().\n\nTo avoid the nonlinear buffer issue, enlarge the RXD size from 128 to\n256 to make sure all MCU operation in linear buffer.\n\n[ 52.007562] kernel BUG at include/linux/skbuff.h:2313!\n[ 52.007578] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\n[ 52.007987] pc : skb_pull+0x48/0x4c\n[ 52.008015] lr : mt7921_queue_rx_skb+0x494/0x890 [mt7921_common]\n[ 52.008361] Call trace:\n[ 52.008377] skb_pull+0x48/0x4c\n[ 52.008400] mt76s_net_worker+0x134/0x1b0 [mt76_sdio 35339a92c6eb7d4bbcc806a1d22f56365565135c]\n[ 52.008431] __mt76_worker_fn+0xe8/0x170 [mt76 ef716597d11a77150bc07e3fdd68eeb0f9b56917]\n[ 52.008449] kthread+0x148/0x3ac\n[ 52.008466] ret_from_fork+0x10/0x30"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mt76.h"], "versions": [{"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "13946d5a68efd11dd6af2f6ef4c908f6b00158a5", "status": "affected", "versionType": "git"}, {"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "c37b4cab3d97ef64b206fca4d9daabd9aff7356e", "status": "affected", "versionType": "git"}, {"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "95e2af01669c7a3cb7a933cefa06361f9db15059", "status": "affected", "versionType": "git"}, {"version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "123bc712b1de0805f9d683687e17b1ec2aba0b68", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mt76.h"], "versions": [{"version": "4.16", "status": "affected"}, {"version": "0", "lessThan": "4.16", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.34", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16.20", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.3", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "5.15.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "5.16.20"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "5.17.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "5.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/13946d5a68efd11dd6af2f6ef4c908f6b00158a5"}, {"url": "https://git.kernel.org/stable/c/c37b4cab3d97ef64b206fca4d9daabd9aff7356e"}, {"url": "https://git.kernel.org/stable/c/95e2af01669c7a3cb7a933cefa06361f9db15059"}, {"url": "https://git.kernel.org/stable/c/123bc712b1de0805f9d683687e17b1ec2aba0b68"}], "title": "mt76: fix monitor mode crash with sdio driver", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: fix monitor mode crash with sdio driver\n\nmt7921s driver may receive frames with fragment buffers. If there is a\nCTS packet received in monitor mode, the payload is 10 bytes only and\nneed 6 bytes header padding after RXD buffer. However, only RXD in the\nfirst linear buffer, if we pull buffer size RXD-size+6 bytes with\nskb_pull(), that would trigger \"BUG_ON(skb->len < skb->data_len)\" in\n__skb_pull().\n\nTo avoid the nonlinear buffer issue, enlarge the RXD size from 128 to\n256 to make sure all MCU operation in linear buffer.\n\n[ 52.007562] kernel BUG at include/linux/skbuff.h:2313!\n[ 52.007578] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\n[ 52.007987] pc : skb_pull+0x48/0x4c\n[ 52.008015] lr : mt7921_queue_rx_skb+0x494/0x890 [mt7921_common]\n[ 52.008361] Call trace:\n[ 52.008377] skb_pull+0x48/0x4c\n[ 52.008400] mt76s_net_worker+0x134/0x1b0 [mt76_sdio 35339a92c6eb7d4bbcc806a1d22f56365565135c]\n[ 52.008431] __mt76_worker_fn+0xe8/0x170 [mt76 ef716597d11a77150bc07e3fdd68eeb0f9b56917]\n[ 52.008449] kthread+0x148/0x3ac\n[ 52.008466] ret_from_fork+0x10/0x30"}], "id": "CVE-2022-49112", "lastModified": "2025-02-26T07:00:48.577", "metrics": {}, "published": "2025-02-26T07:00:48.577", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/123bc712b1de0805f9d683687e17b1ec2aba0b68"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/13946d5a68efd11dd6af2f6ef4c908f6b00158a5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/95e2af01669c7a3cb7a933cefa06361f9db15059"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c37b4cab3d97ef64b206fca4d9daabd9aff7356e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: mt76: fix monitor mode crash with sdio driver", "id": "2347778", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347778"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmt76: fix monitor mode crash with sdio driver\nmt7921s driver may receive frames with fragment buffers. If there is a\nCTS packet received in monitor mode, the payload is 10 bytes only and\nneed 6 bytes header padding after RXD buffer. However, only RXD in the\nfirst linear buffer, if we pull buffer size RXD-size+6 bytes with\nskb_pull(), that would trigger \"BUG_ON(skb->len < skb->data_len)\" in\n__skb_pull().\nTo avoid the nonlinear buffer issue, enlarge the RXD size from 128 to\n256 to make sure all MCU operation in linear buffer.\n[ 52.007562] kernel BUG at include/linux/skbuff.h:2313!\n[ 52.007578] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\n[ 52.007987] pc : skb_pull+0x48/0x4c\n[ 52.008015] lr : mt7921_queue_rx_skb+0x494/0x890 [mt7921_common]\n[ 52.008361] Call trace:\n[ 52.008377] skb_pull+0x48/0x4c\n[ 52.008400] mt76s_net_worker+0x134/0x1b0 [mt76_sdio 35339a92c6eb7d4bbcc806a1d22f56365565135c]\n[ 52.008431] __mt76_worker_fn+0xe8/0x170 [mt76 ef716597d11a77150bc07e3fdd68eeb0f9b56917]\n[ 52.008449] kthread+0x148/0x3ac\n[ 52.008466] ret_from_fork+0x10/0x30"], "name": "CVE-2022-49112", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49112\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49112\nhttps://lore.kernel.org/linux-cve-announce/2025022602-CVE-2022-49112-3f57@gregkh/T"], "threat_severity": "Moderate"}