CVE-2022-48691
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-48691
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48691.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-48691
- Downstream
- Related
- Published
- 2024-05-03T15:03:28Z
- Modified
- 2025-10-15T15:58:25.458272Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
- Summary
- netfilter: nf_tables: clean up hook list when offload flags check fails
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: clean up hook list when offload flags check fails
splice back the hook list so nftchainrelease_hook() has a chance to release the hooks.
BUG: memory leak unreferenced object 0xffff88810180b100 (size 96): comm "syz-executor133", pid 3619, jiffies 4294945714 (age 12.690s) hex dump (first 32 bytes): 28 64 23 02 81 88 ff ff 28 64 23 02 81 88 ff ff (d#.....(d#..... 90 a8 aa 83 ff ff ff ff 00 00 b5 0f 81 88 ff ff ................ backtrace: [<ffffffff83a8c59b>] kmalloc include/linux/slab.h:600 [inline] [<ffffffff83a8c59b>] nftnetdevhookalloc+0x3b/0xc0 net/netfilter/nftablesapi.c:1901 [<ffffffff83a9239a>] nftchainparsenetdev net/netfilter/nftablesapi.c:1998 [inline] [<ffffffff83a9239a>] nftchainparsehook+0x33a/0x530 net/netfilter/nftablesapi.c:2073 [<ffffffff83a9b14b>] nftablesaddchain.constprop.0+0x10b/0x950 net/netfilter/nftablesapi.c:2218 [<ffffffff83a9c41b>] nftablesnewchain+0xa8b/0xc60 net/netfilter/nftablesapi.c:2593 [<ffffffff83a3d6a6>] nfnetlinkrcvbatch+0xa46/0xd20 net/netfilter/nfnetlink.c:517 [<ffffffff83a3db79>] nfnetlinkrcvskbbatch net/netfilter/nfnetlink.c:638 [inline] [<ffffffff83a3db79>] nfnetlinkrcv+0x1f9/0x220 net/netfilter/nfnetlink.c:656 [<ffffffff83a13b17>] netlinkunicastkernel net/netlink/afnetlink.c:1319 [inline] [<ffffffff83a13b17>] netlinkunicast+0x397/0x4c0 net/netlink/afnetlink.c:1345 [<ffffffff83a13fd6>] netlinksendmsg+0x396/0x710 net/netlink/afnetlink.c:1921 [<ffffffff83865ab6>] socksendmsgnosec net/socket.c:714 [inline] [<ffffffff83865ab6>] socksendmsg+0x56/0x80 net/socket.c:734 [<ffffffff8386601c>] syssendmsg+0x36c/0x390 net/socket.c:2482 [<ffffffff8386a918>] syssendmsg+0xa8/0x110 net/socket.c:2536 [<ffffffff8386aaa8>] _syssendmsg+0x88/0x100 net/socket.c:2565 [<ffffffff845e5955>] dosyscallx64 arch/x86/entry/common.c:50 [inline] [<ffffffff845e5955>] dosyscall64+0x35/0xb0 arch/x86/entry/common.c:80 [<ffffffff84800087>] entrySYSCALL64afterhwframe+0x63/0xcd
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/1ce55ec5cb7c573c983dffbe290b8d17caf1f157
- https://git.kernel.org/stable/c/77972a36ecc4db7fc7c68f0e80714263c5f03f65
- https://git.kernel.org/stable/c/910891a2a44cdc49efcc4fe7459c1085ba00d0f4
- https://git.kernel.org/stable/c/94ed8eeb8d9aeb00e4f4e19b83a2e28b6442fbc5
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd54725cd11a57c30f650260cfb0a92c268bdc3e0Fixed910891a2a44cdc49efcc4fe7459c1085ba00d0f4
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd54725cd11a57c30f650260cfb0a92c268bdc3e0Fixed1ce55ec5cb7c573c983dffbe290b8d17caf1f157
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd54725cd11a57c30f650260cfb0a92c268bdc3e0Fixed94ed8eeb8d9aeb00e4f4e19b83a2e28b6442fbc5
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd54725cd11a57c30f650260cfb0a92c268bdc3e0Fixed77972a36ecc4db7fc7c68f0e80714263c5f03f65
Affected versions
v5.*
v6.*
Database specific
vanir_signatures
[
{
"signature_type": "Function",
"id": "CVE-2022-48691-4dae11b7",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1ce55ec5cb7c573c983dffbe290b8d17caf1f157",
"signature_version": "v1",
"target": {
"function": "nft_basechain_init",
"file": "net/netfilter/nf_tables_api.c"
},
"digest": {
"function_hash": "189912842019063220711398245916942524414",
"length": 768.0
},
"deprecated": false
},
{
"signature_type": "Line",
"id": "CVE-2022-48691-bc2bf095",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1ce55ec5cb7c573c983dffbe290b8d17caf1f157",
"signature_version": "v1",
"target": {
"file": "net/netfilter/nf_tables_api.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"160306890634228836004838934951764351254",
"279261481237550211013191711891429897436",
"336321789075415517514766844986202839110",
"112772609812690435330972328284716716077",
"273486326865502649388131516506240757180"
]
},
"deprecated": false
}
]