CVE-2024-47668
Description
In the Linux kernel, the following vulnerability has been resolved: lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc() If we need to increase the tree depth, allocate a new node, and then race with another thread that increased the tree depth before us, we'll still have a preallocated node that might be used later. If we then use that node for a new non-root node, it'll still have a pointer to the old root instead of being zeroed - fix this by zeroing it in the cmpxchg failure path.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: alma — https://errata.almalinux.org/8/ALSA-2024-8870.html
Vendor advisory: alma — https://access.redhat.com/errata/RHSA-2024:8870
Vendor advisory: alma — https://errata.almalinux.org/8/ALSA-2024-8856.html
Vendor advisory: alma — https://bugzilla.redhat.com/2317601
Vendor advisory: alma — https://bugzilla.redhat.com/2315178
Vendor advisory: alma — https://bugzilla.redhat.com/2311715
Vendor advisory: alma — https://bugzilla.redhat.com/2309853
Vendor advisory: alma — https://bugzilla.redhat.com/2309852
Vendor advisory: alma — https://bugzilla.redhat.com/2307892
Vendor advisory: alma — https://bugzilla.redhat.com/2307865
Vendor advisory: alma — https://bugzilla.redhat.com/2307862
Vendor advisory: alma — https://bugzilla.redhat.com/2300517
Vendor advisory: alma — https://bugzilla.redhat.com/2300508
Vendor advisory: alma — https://bugzilla.redhat.com/2300488
Vendor advisory: alma — https://bugzilla.redhat.com/2300487
Vendor advisory: alma — https://bugzilla.redhat.com/2300442
Vendor advisory: alma — https://bugzilla.redhat.com/2300412
Vendor advisory: alma — https://bugzilla.redhat.com/2298412
Vendor advisory: alma — https://bugzilla.redhat.com/2298109
Vendor advisory: alma — https://bugzilla.redhat.com/2297568
Vendor advisory: alma — https://bugzilla.redhat.com/2297567
Vendor advisory: alma — https://bugzilla.redhat.com/2297545
Vendor advisory: alma — https://bugzilla.redhat.com/2297508
Vendor advisory: alma — https://bugzilla.redhat.com/2297475
Vendor advisory: alma — https://bugzilla.redhat.com/2293459
Vendor advisory: alma — https://bugzilla.redhat.com/2293458
Vendor advisory: alma — https://bugzilla.redhat.com/2293402
Vendor advisory: alma — https://bugzilla.redhat.com/2293356
Vendor advisory: alma — https://bugzilla.redhat.com/2281817
Vendor advisory: alma — https://bugzilla.redhat.com/2281669
Vendor advisory: alma — https://bugzilla.redhat.com/2281284
Vendor advisory: alma — https://bugzilla.redhat.com/2278387
Vendor advisory: alma — https://bugzilla.redhat.com/2278350
Vendor advisory: alma — https://bugzilla.redhat.com/2278262
Vendor advisory: alma — https://bugzilla.redhat.com/2277168
Vendor advisory: alma — https://bugzilla.redhat.com/2275750
Vendor advisory: alma — https://bugzilla.redhat.com/2269183
Vendor advisory: alma — https://bugzilla.redhat.com/2266247
Vendor advisory: alma — https://access.redhat.com/errata/RHSA-2024:8856
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2024-47668
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2024-47668.html
Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2024:8856
Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2024:8870
Vendor advisory: redhat — https://access.redhat.com/errata/RHSA-2025:6966
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| rocky | 8 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 6.1.112-1 |
| debian | bullseye | fixed | 6.1.119-1~deb11u1 |
| debian | forky | fixed | 6.10.11-1 |
| debian | sid | fixed | 6.10.11-1 |
| debian | trixie | fixed | 6.10.11-1 |
| almalinux | 8 | fixed | kernel-doc-4.18.0-553.27.1.el8_10.noarch.rpm |
References
- https://access.redhat.com/errata/RHSA-2025:6966
- https://errata.rockylinux.org/RLSA-2024:8870
- https://errata.rockylinux.org/RLSA-2024:8856
- https://www.suse.com/security/cve/CVE-2024-47668.html
- https://security-tracker.debian.org/tracker/CVE-2024-47668
- https://access.redhat.com/errata/RHSA-2024:8856
- https://bugzilla.redhat.com/2266247
- https://bugzilla.redhat.com/2269183
- https://bugzilla.redhat.com/2275750
- https://bugzilla.redhat.com/2277168
- https://bugzilla.redhat.com/2278262
- https://bugzilla.redhat.com/2278350
- https://bugzilla.redhat.com/2278387
- https://bugzilla.redhat.com/2281284
- https://bugzilla.redhat.com/2281669
- https://bugzilla.redhat.com/2281817
- https://bugzilla.redhat.com/2293356
- https://bugzilla.redhat.com/2293402
- https://bugzilla.redhat.com/2293458
- https://bugzilla.redhat.com/2293459
- https://bugzilla.redhat.com/2297475
- https://bugzilla.redhat.com/2297508
- https://bugzilla.redhat.com/2297545
- https://bugzilla.redhat.com/2297567
- https://bugzilla.redhat.com/2297568
Verify integrity in audit chain (admin only). AS-IS.