143 lines
7.3 KiB
JSON
143 lines
7.3 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-49911",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-05-01T14:05:17.248Z",
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"datePublished": "2025-05-01T14:10:53.631Z",
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"dateUpdated": "2026-05-11T19:09:05.818Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:09:05.818Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: enforce documented limit to prevent allocating huge memory\n\nDaniel Xu reported that the hash:net,iface type of the ipset subsystem does\nnot limit adding the same network with different interfaces to a set, which\ncan lead to huge memory usage or allocation failure.\n\nThe quick reproducer is\n\n$ ipset create ACL.IN.ALL_PERMIT hash:net,iface hashsize 1048576 timeout 0\n$ for i in $(seq 0 100); do /sbin/ipset add ACL.IN.ALL_PERMIT 0.0.0.0/0,kaf_$i timeout 0 -exist; done\n\nThe backtrace when vmalloc fails:\n\n [Tue Oct 25 00:13:08 2022] ipset: vmalloc error: size 1073741848, exceeds total pages\n <...>\n [Tue Oct 25 00:13:08 2022] Call Trace:\n [Tue Oct 25 00:13:08 2022] <TASK>\n [Tue Oct 25 00:13:08 2022] dump_stack_lvl+0x48/0x60\n [Tue Oct 25 00:13:08 2022] warn_alloc+0x155/0x180\n [Tue Oct 25 00:13:08 2022] __vmalloc_node_range+0x72a/0x760\n [Tue Oct 25 00:13:08 2022] ? hash_netiface4_add+0x7c0/0xb20\n [Tue Oct 25 00:13:08 2022] ? __kmalloc_large_node+0x4a/0x90\n [Tue Oct 25 00:13:08 2022] kvmalloc_node+0xa6/0xd0\n [Tue Oct 25 00:13:08 2022] ? hash_netiface4_resize+0x99/0x710\n <...>\n\nThe fix is to enforce the limit documented in the ipset(8) manpage:\n\n> The internal restriction of the hash:net,iface set type is that the same\n> network prefix cannot be stored with more than 64 different interfaces\n> in a single set."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/netfilter/ipset/ip_set_hash_gen.h"
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],
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"versions": [
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{
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"version": "ccf0a4b7fc688561428290265e4effde41446668",
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"lessThan": "42d20d5e24575c9afa2d66d9a51e7386db9514f5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ccf0a4b7fc688561428290265e4effde41446668",
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"lessThan": "a37ef32fe5956fe9248df68f6a61997845ba047e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ccf0a4b7fc688561428290265e4effde41446668",
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"lessThan": "510841da1fcc16f702440ab58ef0b4d82a9056b7",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/netfilter/ipset/ip_set_hash_gen.h"
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],
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"versions": [
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{
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"version": "5.11",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.11",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.78",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.0.8",
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"lessThanOrEqual": "6.0.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "5.15.78"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "6.0.8"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "6.1"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/42d20d5e24575c9afa2d66d9a51e7386db9514f5"
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},
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{
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"url": "https://git.kernel.org/stable/c/a37ef32fe5956fe9248df68f6a61997845ba047e"
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},
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{
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"url": "https://git.kernel.org/stable/c/510841da1fcc16f702440ab58ef0b4d82a9056b7"
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}
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],
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"title": "netfilter: ipset: enforce documented limit to prevent allocating huge memory",
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"x_generator": {
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} |