| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwireguard: netlink: check for dangling peer via is_dead instead of empty list\n\nIf all peers are removed via wg_peer_remove_all(), rather than setting\npeer_list to empty, the peer is added to a temporary list with a head on\nthe stack of wg_peer_remove_all(). If a netlink dump is resumed and the\ncursored peer is one that has been removed via wg_peer_remove_all(), it\nwill iterate from that peer and then attempt to dump freed peers.\n\nFix this by instead checking peer->is_dead, which was explictly created\nfor this purpose. Also move up the device_update_lock lockdep assertion,\nsince reading is_dead relies on that.\n\nIt can be reproduced by a small script like:\n\n echo \"Setting config...\"\n ip link add dev wg0 type wireguard\n wg setconf wg0 /big-config\n (\n while true; do\n echo \"Showing config...\"\n wg showconf wg0 > /dev/null\n done\n ) &\n sleep 4\n wg setconf wg0 <(printf \"[Peer]\\nPublicKey=$(wg genkey)\\n\")\n\nResulting in:\n\n BUG: KASAN: slab-use-after-free in __lock_acquire+0x182a/0x1b20\n Read of size 8 at addr ffff88811956ec70 by task wg/59\n CPU: 2 PID: 59 Comm: wg Not tainted 6.8.0-rc2-debug+ #5\n Call Trace:\n <TASK>\n dump_stack_lvl+0x47/0x70\n print_address_description.constprop.0+0x2c/0x380\n print_report+0xab/0x250\n kasan_report+0xba/0xf0\n __lock_acquire+0x182a/0x1b20\n lock_acquire+0x191/0x4b0\n down_read+0x80/0x440\n get_peer+0x140/0xcb0\n wg_get_device_dump+0x471/0x1130" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/net/wireguard/netlink.c" |
| ], |
| "versions": [ |
| { |
| "version": "e7096c131e5161fa3b8e52a650d7719d2857adfd", |
| "lessThan": "f52be46e3e6ecefc2539119784324f0cbc09620a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e7096c131e5161fa3b8e52a650d7719d2857adfd", |
| "lessThan": "710a177f347282eea162aec8712beb1f42d5ad87", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e7096c131e5161fa3b8e52a650d7719d2857adfd", |
| "lessThan": "b7cea3a9af0853fdbb1b16633a458f991dde6aac", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e7096c131e5161fa3b8e52a650d7719d2857adfd", |
| "lessThan": "13d107794304306164481d31ce33f8fdb25a9c04", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e7096c131e5161fa3b8e52a650d7719d2857adfd", |
| "lessThan": "7bedfe4cfa38771840a355970e4437cd52d4046b", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e7096c131e5161fa3b8e52a650d7719d2857adfd", |
| "lessThan": "302b2dfc013baca3dea7ceda383930d9297d231d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e7096c131e5161fa3b8e52a650d7719d2857adfd", |
| "lessThan": "55b6c738673871c9b0edae05d0c97995c1ff08c4", |
| "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/wireguard/netlink.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.6", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.6", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.215", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.154", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.84", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.24", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.7.12", |
| "lessThanOrEqual": "6.7.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.8.3", |
| "lessThanOrEqual": "6.8.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.9", |
| "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": "5.6", |
| "versionEndExcluding": "5.10.215" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.6", |
| "versionEndExcluding": "5.15.154" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.6", |
| "versionEndExcluding": "6.1.84" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.6", |
| "versionEndExcluding": "6.6.24" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.6", |
| "versionEndExcluding": "6.7.12" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.6", |
| "versionEndExcluding": "6.8.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.6", |
| "versionEndExcluding": "6.9" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/f52be46e3e6ecefc2539119784324f0cbc09620a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/710a177f347282eea162aec8712beb1f42d5ad87" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b7cea3a9af0853fdbb1b16633a458f991dde6aac" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/13d107794304306164481d31ce33f8fdb25a9c04" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/7bedfe4cfa38771840a355970e4437cd52d4046b" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/302b2dfc013baca3dea7ceda383930d9297d231d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/55b6c738673871c9b0edae05d0c97995c1ff08c4" |
| } |
| ], |
| "title": "wireguard: netlink: check for dangling peer via is_dead instead of empty list", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-26951", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
