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vuln-cve/data/2022/49xxx/CVE-2022-49916.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2022-49916",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-05-01T14:05:17.251Z",
"datePublished": "2025-05-01T14:10:56.851Z",
"dateUpdated": "2026-05-23T15:23:13.168Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-23T15:23:13.168Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrose: Fix NULL pointer dereference in rose_send_frame()\n\nThe syzkaller reported an issue:\n\nKASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387]\nCPU: 0 PID: 4069 Comm: kworker/0:15 Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022\nWorkqueue: rcu_gp srcu_invoke_callbacks\nRIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101\nCall Trace:\n <IRQ>\n rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255\n rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009\n rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111\n call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474\n expire_timers kernel/time/timer.c:1519 [inline]\n __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790\n __run_timers kernel/time/timer.c:1768 [inline]\n run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803\n __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571\n [...]\n </IRQ>\n\nIt triggers NULL pointer dereference when 'neigh->dev->dev_addr' is\ncalled in the rose_send_frame(). It's the first occurrence of the\n`neigh` is in rose_loopback_timer() as `rose_loopback_neigh', and\nthe 'dev' in 'rose_loopback_neigh' is initialized sa nullptr.\n\nIt had been fixed by commit 3b3fd068c56e3fbea30090859216a368398e39bf\n(\"rose: Fix Null pointer dereference in rose_send_frame()\") ever.\nBut it's introduced by commit 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8\n(\"rose: check NULL rose_loopback_neigh->loopback\") again.\n\nWe fix it by add NULL check in rose_transmit_clear_request(). When\nthe 'dev' in 'neigh' is NULL, we don't reply the request and just\nclear it.\n\nsyzkaller don't provide repro, and I provide a syz repro like:\nr0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)\nioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000180)={'rose0\\x00', 0x201})\nr1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)\nbind$rose(r1, &(0x7f00000000c0)=@full={0xb, @dev, @null, 0x0, [@null, @null, @netrom, @netrom, @default, @null]}, 0x40)\nconnect$rose(r1, &(0x7f0000000240)=@short={0xb, @dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}}, 0x1c)"
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/rose/rose_link.c"
],
"versions": [
{
"version": "76885373129b13df35ecc9b4ee86ea5840f12133",
"lessThan": "01b9c68c121847d05a4ccef68244dadf82bfa331",
"status": "affected",
"versionType": "git"
},
{
"version": "b8f9de195d6303f52bae16c7911f35ac14ba7e3d",
"lessThan": "bbc03d74e641e824754443b908454ca9e203773e",
"status": "affected",
"versionType": "git"
},
{
"version": "0aae33feb7a56b28318f92c960a3d08d9c305984",
"lessThan": "5b46adfbee1e429f33b10a88d6c00fa88f3d6c77",
"status": "affected",
"versionType": "git"
},
{
"version": "6e4b20d548fc97ecbdca15c8d96302ee5e3e6313",
"lessThan": "b13be5e852b03f376058027e462fad4230240891",
"status": "affected",
"versionType": "git"
},
{
"version": "de3deadd11987070788b48825bec4647458b988d",
"lessThan": "f06186e5271b980bac03f5c97276ed0146ddc9b0",
"status": "affected",
"versionType": "git"
},
{
"version": "9cf85759e104d7e9c3fd8920a554195b715d6797",
"lessThan": "3e2129c67daca21043a26575108f6286c85e71f6",
"status": "affected",
"versionType": "git"
},
{
"version": "3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8",
"lessThan": "a601e5eded33bb88b8a42743db8fef3ad41dd97e",
"status": "affected",
"versionType": "git"
},
{
"version": "3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8",
"lessThan": "e97c089d7a49f67027395ddf70bf327eeac2611e",
"status": "affected",
"versionType": "git"
},
{
"version": "9197ca40fd9de265caedba70d0cb5814c4e45952",
"status": "affected",
"versionType": "git"
},
{
"version": "4.9.327",
"lessThan": "4.9.333",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.14.292",
"lessThan": "4.14.299",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.19.257",
"lessThan": "4.19.265",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.4.212",
"lessThan": "5.4.224",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.10.140",
"lessThan": "5.10.154",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.15.64",
"lessThan": "5.15.78",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.19.6",
"lessThan": "5.20",
"status": "affected",
"versionType": "semver"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/rose/rose_link.c"
],
"versions": [
{
"version": "6.0",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.0",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.9.333",
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.14.299",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.19.265",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.224",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.154",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.78",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.0.8",
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1",
"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": "4.9.327",
"versionEndExcluding": "4.9.333"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.14.292",
"versionEndExcluding": "4.14.299"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.19.257",
"versionEndExcluding": "4.19.265"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.4.212",
"versionEndExcluding": "5.4.224"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10.140",
"versionEndExcluding": "5.10.154"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15.64",
"versionEndExcluding": "5.15.78"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.0",
"versionEndExcluding": "6.0.8"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.0",
"versionEndExcluding": "6.1"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.19.6"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/01b9c68c121847d05a4ccef68244dadf82bfa331"
},
{
"url": "https://git.kernel.org/stable/c/bbc03d74e641e824754443b908454ca9e203773e"
},
{
"url": "https://git.kernel.org/stable/c/5b46adfbee1e429f33b10a88d6c00fa88f3d6c77"
},
{
"url": "https://git.kernel.org/stable/c/b13be5e852b03f376058027e462fad4230240891"
},
{
"url": "https://git.kernel.org/stable/c/f06186e5271b980bac03f5c97276ed0146ddc9b0"
},
{
"url": "https://git.kernel.org/stable/c/3e2129c67daca21043a26575108f6286c85e71f6"
},
{
"url": "https://git.kernel.org/stable/c/a601e5eded33bb88b8a42743db8fef3ad41dd97e"
},
{
"url": "https://git.kernel.org/stable/c/e97c089d7a49f67027395ddf70bf327eeac2611e"
}
],
"title": "rose: Fix NULL pointer dereference in rose_send_frame()",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"problemTypes": [
{
"descriptions": [
{
"type": "CWE",
"cweId": "CWE-476",
"lang": "en",
"description": "CWE-476 NULL Pointer Dereference"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
}
},
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2025-10-01T16:00:00.455092Z",
"id": "CVE-2022-49916",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-10-01T16:00:19.393Z"
}
}
]
}
}
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