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vuln-cve/data/2026/93xxx/CVE-2026-93286.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-93286",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-09-17T16:02:15.099Z",
"datePublished": "2026-09-24T16:02:10.463Z",
"dateUpdated": "2026-10-03T10:57:12.356Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-10-03T10:57:12.356Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: appletalk: fix NULL pointer dereference in aarp_send_ddp()\n\naarp_send_ddp() calls atalk_find_dev_addr(dev) in the LocalTalk fast\npath without checking for NULL. When the device has no AppleTalk\ninterface configured (dev->atalk_ptr == NULL), this leads to a NULL\npointer dereference at the at->s_net access.\n\n KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n RIP: 0010:aarp_send_ddp (net/appletalk/aarp.c:552 (discriminator 2))\n Call Trace:\n <TASK>\n atalk_sendmsg (net/appletalk/ddp.c:1715)\n __sys_sendto (net/socket.c:2265 (discriminator 1))\n __x64_sys_sendto (net/socket.c:2272)\n do_syscall_64 (arch/x86/entry/syscall_64.c:94)\n entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)\n\nAdd a NULL check consistent with the other callers of\natalk_find_dev_addr()."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/appletalk/aarp.c"
],
"versions": [
{
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"lessThan": "51cc5e756cec6071ffc620076aebcf5bae936668",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"lessThan": "8c4b9ceb1be780588c1c50d573d5ee308e0874d2",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"lessThan": "d643fd42ad96f19b5ce5cb11824fefa617191dbe",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"lessThan": "542c1dd41e1b0cd1c2c3ba8091c7d882eea0d680",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"lessThan": "8fc30f0cdf4207a5aa2341c0a98d0f1713b3ce2c",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"lessThan": "83899a056aeb120898a6e3a989971fc63e274e2e",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"lessThan": "9e7f36ab5b7bf68463faa5f7b926fea8f35597bb",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/appletalk/aarp.c"
],
"versions": [
{
"version": "2.6.12",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.12",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.271",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.222",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.189",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.158",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.111",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.53",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.1",
"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": "2.6.12",
"versionEndExcluding": "5.10.271"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.12",
"versionEndExcluding": "5.15.222"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.12",
"versionEndExcluding": "6.1.189"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.12",
"versionEndExcluding": "6.6.158"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.12",
"versionEndExcluding": "6.12.111"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.12",
"versionEndExcluding": "6.18.53"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.12",
"versionEndExcluding": "7.1"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/51cc5e756cec6071ffc620076aebcf5bae936668"
},
{
"url": "https://git.kernel.org/stable/c/8c4b9ceb1be780588c1c50d573d5ee308e0874d2"
},
{
"url": "https://git.kernel.org/stable/c/d643fd42ad96f19b5ce5cb11824fefa617191dbe"
},
{
"url": "https://git.kernel.org/stable/c/542c1dd41e1b0cd1c2c3ba8091c7d882eea0d680"
},
{
"url": "https://git.kernel.org/stable/c/8fc30f0cdf4207a5aa2341c0a98d0f1713b3ce2c"
},
{
"url": "https://git.kernel.org/stable/c/83899a056aeb120898a6e3a989971fc63e274e2e"
},
{
"url": "https://git.kernel.org/stable/c/9e7f36ab5b7bf68463faa5f7b926fea8f35597bb"
}
],
"title": "net: appletalk: fix NULL pointer dereference in aarp_send_ddp()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}
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