CVE-2022-49662
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49662
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49662.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49662
- Downstream
- Published
- 2025-02-26T02:23:58.824Z
- Modified
- 2025-11-28T22:39:46.690008Z
- Summary
- ipv6: fix lockdep splat in in6_dump_addrs()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ipv6: fix lockdep splat in in6dumpaddrs()
As reported by syzbot, we should not use rcudereference() when rcuread_lock() is not held.
WARNING: suspicious RCU usage 5.19.0-rc2-syzkaller #0 Not tainted
net/ipv6/addrconf.c:5175 suspicious rcudereferencecheck() usage!
other info that might help us debug this:
rcuscheduleractive = 2, debuglocks = 1 1 lock held by syz-executor326/3617: #0: ffffffff8d5848e8 (rtnlmutex){+.+.}-{3:3}, at: netlinkdump+0xae/0xc20 net/netlink/afnetlink.c:2223
stack backtrace: CPU: 0 PID: 3617 Comm: syz-executor326 Not tainted 5.19.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <TASK> dumpstack lib/dumpstack.c:88 [inline] dumpstacklvl+0xcd/0x134 lib/dumpstack.c:106 in6dumpaddrs+0x12d1/0x1790 net/ipv6/addrconf.c:5175 inet6dumpaddr+0x9c1/0xb50 net/ipv6/addrconf.c:5300 netlinkdump+0x541/0xc20 net/netlink/afnetlink.c:2275 _netlinkdumpstart+0x647/0x900 net/netlink/afnetlink.c:2380 netlinkdumpstart include/linux/netlink.h:245 [inline] rtnetlinkrcvmsg+0x73e/0xc90 net/core/rtnetlink.c:6046 netlinkrcvskb+0x153/0x420 net/netlink/afnetlink.c:2501 netlinkunicastkernel net/netlink/afnetlink.c:1319 [inline] netlinkunicast+0x543/0x7f0 net/netlink/afnetlink.c:1345 netlinksendmsg+0x917/0xe10 net/netlink/afnetlink.c:1921 socksendmsgnosec net/socket.c:714 [inline] socksendmsg+0xcf/0x120 net/socket.c:734 syssendmsg+0x6eb/0x810 net/socket.c:2492 _syssendmsg+0xf3/0x170 net/socket.c:2546 _syssendmsg net/socket.c:2575 [inline] _dosyssendmsg net/socket.c:2584 [inline] _sesyssendmsg net/socket.c:2582 [inline] _x64syssendmsg+0x132/0x220 net/socket.c:2582 dosyscallx64 arch/x86/entry/common.c:50 [inline] dosyscall64+0x35/0xb0 arch/x86/entry/common.c:80 entrySYSCALL64after_hwframe+0x46/0xb0
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49662.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/2930ee1a166df0e12fe9fec4b79cc3dc9634ae45
- https://git.kernel.org/stable/c/4e43e64d0f1332fcc503babad4dc31aead7131ca
- https://git.kernel.org/stable/c/b39fda51c32dd879451e0119881f31493bf83283
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49662.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49662
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
-
Introduced88e2ca3080947fe22eb520c1f8231e79a105d011Fixed2930ee1a166df0e12fe9fec4b79cc3dc9634ae45Fixedb39fda51c32dd879451e0119881f31493bf83283Fixed4e43e64d0f1332fcc503babad4dc31aead7131ca