| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "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." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/netfilter/ipset/ip_set_hash_gen.h" |
| ], |
| "versions": [ |
| { |
| "version": "ccf0a4b7fc688561428290265e4effde41446668", |
| "lessThan": "42d20d5e24575c9afa2d66d9a51e7386db9514f5", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ccf0a4b7fc688561428290265e4effde41446668", |
| "lessThan": "a37ef32fe5956fe9248df68f6a61997845ba047e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ccf0a4b7fc688561428290265e4effde41446668", |
| "lessThan": "510841da1fcc16f702440ab58ef0b4d82a9056b7", |
| "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/netfilter/ipset/ip_set_hash_gen.h" |
| ], |
| "versions": [ |
| { |
| "version": "5.11", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.11", |
| "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": "5.11", |
| "versionEndExcluding": "5.15.78" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.11", |
| "versionEndExcluding": "6.0.8" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.11", |
| "versionEndExcluding": "6.1" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/42d20d5e24575c9afa2d66d9a51e7386db9514f5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a37ef32fe5956fe9248df68f6a61997845ba047e" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/510841da1fcc16f702440ab58ef0b4d82a9056b7" |
| } |
| ], |
| "title": "netfilter: ipset: enforce documented limit to prevent allocating huge memory", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2022-49911", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
