DEBIAN-CVE-2024-50130
- Source
- https://security-tracker.debian.org/tracker/CVE-2024-50130
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-50130.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2024-50130
- Upstream
- Published
- 2024-11-05T18:15:15Z
- Modified
- 2025-09-19T06:15:24Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: netfilter: bpf: must hold reference on net namespace BUG: KASAN: slab-use-after-free in _nfunregisternethook+0x640/0x6b0 Read of size 8 at addr ffff8880106fe400 by task repro/72= bpfnflinkrelease+0xda/0x1e0 bpflinkfree+0x139/0x2d0 bpflinkrelease+0x68/0x80 _fput+0x414/0xb60 Eric says: It seems that bpf was able to defer the _nfunregisternethook() after exit()/close() time. Perhaps a netns reference is missing, because the netns has been dismantled/freed already. bpfnflink_attach() does : link->net = net; But I do not see a reference being taken on net. Add such a reference and release it after hook unreg. Note that I was unable to get syzbot reproducer to work, so I do not know if this resolves this splat.
- References
Affected packages
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source