CVE-2024-42082
Description
In the Linux kernel, the following vulnerability has been resolved: xdp: Remove WARN() from __xdp_reg_mem_model() syzkaller reports a warning in __xdp_reg_mem_model(). The warning occurs only if __mem_id_init_hash_table() returns an error. It returns the error in two cases: 1. memory allocation fails; 2. rhashtable_init() fails when some fields of rhashtable_params struct are not initialized properly. The second case cannot happen since there is a static const rhashtable_params struct with valid fields. So, warning is only triggered when there is a problem with memory allocation. Thus, there is no sense in using WARN() to handle this error and it can be safely removed. WARNING: CPU: 0 PID: 5065 at net/core/xdp.c:299 __xdp_reg_mem_model+0x2d9/0x650 net/core/xdp.c:299 CPU: 0 PID: 5065 Comm: syz-executor883 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__xdp_reg_mem_model+0x2d9/0x650 net/core/xdp.c:299 Call Trace: xdp_reg_mem_model+0x22/0x40 net/core/xdp.c:344 xdp_test_run_setup net/bpf/test_run.c:188 [inline] bpf_test_run_xdp_live+0x365/0x1e90 net/bpf/test_run.c:377 bpf_prog_test_run_xdp+0x813/0x11b0 net/bpf/test_run.c:1267 bpf_prog_test_run+0x33a/0x3b0 kernel/bpf/syscall.c:4240 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5649 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5736 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 Found by Linux Verification Center (linuxtesting.org) with syzkaller.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| sles | affected | | |
| rocky | 9 | fixed | |
| debian | bookworm | fixed | 6.1.98-1 |
| debian | bullseye | fixed | 5.10.221-1 |
| debian | forky | fixed | 6.9.8-1 |
| debian | sid | fixed | 6.9.8-1 |
| debian | trixie | fixed | 6.9.8-1 |
| linux-kernel | affected | 4.18 | |
| almalinux | 9 | fixed | kernel-doc-5.14.0-427.35.1.el9_4.noarch.rpm |
References
- https://access.redhat.com/errata/RHSA-2024:6567
- https://git.kernel.org/stable/c/1095b8efbb13a6a5fa583ed373ee1ccab29da2d0
- https://git.kernel.org/stable/c/14e51ea78b4ccacb7acb1346b9241bb790a2054c
- https://git.kernel.org/stable/c/1d3e3b3aa2cbe9bc7db9a7f8673a9fa6d2990d54
- https://git.kernel.org/stable/c/4e0c539ee265d5c6e7fa7d229cd4aa7bc01816e2
- https://git.kernel.org/stable/c/7e9f79428372c6eab92271390851be34ab26bfb4
- https://git.kernel.org/stable/c/f92298b0467fd77edc4c1a2c3e48833e69840ec4
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
- https://www.suse.com/security/cve/CVE-2024-42082.html
- https://errata.rockylinux.org/RXSA-2024:6567
- https://errata.rockylinux.org/RLSA-2024:6567
- https://security-tracker.debian.org/tracker/CVE-2024-42082
- https://bugzilla.redhat.com/2265797
- https://bugzilla.redhat.com/2269434
- https://bugzilla.redhat.com/2269436
- https://bugzilla.redhat.com/2273141
- https://bugzilla.redhat.com/2275678
- https://bugzilla.redhat.com/2278206
- https://bugzilla.redhat.com/2281052
- https://bugzilla.redhat.com/2281151
- https://bugzilla.redhat.com/2281727
- https://bugzilla.redhat.com/2281968
CWEs
CWE-770
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.