CVE-2022-49862

Description

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]

Reserved 2025-05-01 | Published 2025-05-01 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

4c559fb7e111077b56f62ccf833a52d8169cde19 before 082707d3df191bf5bb8801d43e4ce3dea39ca173
affected

2aae1723dea1235ffef183daf0694805297424f6 before a0ead1d648df9c456baec832b494513ef405949a
affected

2d5fc1d492d194aa2986c5a9d8a48a60e9143a72 before 55a253a6753a603e80b95932ca971ba514aa6ce7
affected

974cb0e3e7c963ced06c4e32c5b2884173fa5e01 before 36769b9477491a7af6635863bd950309c1e1b96c
affected

974cb0e3e7c963ced06c4e32c5b2884173fa5e01 before f31dd158580940938f77514b87337a777520185a
affected

974cb0e3e7c963ced06c4e32c5b2884173fa5e01 before 301caa06091af4d5cf056ac8249cbda4e6029c6a
affected

974cb0e3e7c963ced06c4e32c5b2884173fa5e01 before 6cee2c60bd168279852ac7dbe54c2b70d1028644
affected

974cb0e3e7c963ced06c4e32c5b2884173fa5e01 before 1c075b192fe41030457cd4a5f7dea730412bca40
affected

c25352f9ad5dffb4de95069e67891e2aa2e99e50
affected

5486e8d46560ca2b4d86cbd7d3a66d9913b2ac65
affected

Default status
affected

5.0
affected

Any version before 5.0
unaffected

4.9.334
unaffected

4.14.300
unaffected

4.19.267
unaffected

5.4.225
unaffected

5.10.155
unaffected

5.15.79
unaffected

6.0.9
unaffected

6.1
unaffected

References

git.kernel.org/...c/082707d3df191bf5bb8801d43e4ce3dea39ca173

git.kernel.org/...c/a0ead1d648df9c456baec832b494513ef405949a

git.kernel.org/...c/55a253a6753a603e80b95932ca971ba514aa6ce7

git.kernel.org/...c/36769b9477491a7af6635863bd950309c1e1b96c

git.kernel.org/...c/f31dd158580940938f77514b87337a777520185a

git.kernel.org/...c/301caa06091af4d5cf056ac8249cbda4e6029c6a

git.kernel.org/...c/6cee2c60bd168279852ac7dbe54c2b70d1028644

git.kernel.org/...c/1c075b192fe41030457cd4a5f7dea730412bca40

cve.org (CVE-2022-49862)

nvd.nist.gov (CVE-2022-49862)

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