CVE-2022-49862 (GCVE-0-2022-49862)
Vulnerability from cvelistv5 – Published: 2025-05-01 14:10 – Updated: 2025-10-01 16:11
VLAI?
Title
tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header
Summary
In the Linux kernel, the following vulnerability has been resolved:
tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header
This is a follow-up for commit 974cb0e3e7c9 ("tipc: fix uninit-value
in tipc_nl_compat_name_table_dump") where it should have type casted
sizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negative
value.
syzbot reported a call trace because of it:
BUG: KMSAN: uninit-value in ...
tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934
__tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238
tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321
tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324
genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792
netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501
genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
Severity ?
5.5 (Medium)
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
4c559fb7e111077b56f62ccf833a52d8169cde19 , < 082707d3df191bf5bb8801d43e4ce3dea39ca173
(git)
Affected: 2aae1723dea1235ffef183daf0694805297424f6 , < a0ead1d648df9c456baec832b494513ef405949a (git) Affected: 2d5fc1d492d194aa2986c5a9d8a48a60e9143a72 , < 55a253a6753a603e80b95932ca971ba514aa6ce7 (git) Affected: 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 , < 36769b9477491a7af6635863bd950309c1e1b96c (git) Affected: 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 , < f31dd158580940938f77514b87337a777520185a (git) Affected: 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 , < 301caa06091af4d5cf056ac8249cbda4e6029c6a (git) Affected: 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 , < 6cee2c60bd168279852ac7dbe54c2b70d1028644 (git) Affected: 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 , < 1c075b192fe41030457cd4a5f7dea730412bca40 (git) Affected: c25352f9ad5dffb4de95069e67891e2aa2e99e50 (git) Affected: 5486e8d46560ca2b4d86cbd7d3a66d9913b2ac65 (git) |
|||||||
|
|||||||||
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\"4.14.95\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.267\", \"versionStartIncluding\": \"4.19.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.225\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.155\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.79\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.9\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.4.172\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.20.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:45:17.323Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2022-49862\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T16:11:44.347Z\", \"dateReserved\": \"2025-05-01T14:05:17.236Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-05-01T14:10:15.742Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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