CVE-2024-56658
- Source
- https://cve.org/CVERecord?id=CVE-2024-56658
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56658.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-56658
- Downstream
BELL (1)
CLSA (10)
MGASA (2)
SUSE (18)
- SUSE-SU-2025:0499-1
- SUSE-SU-2025:0555-1
- SUSE-SU-2025:0556-1
- SUSE-SU-2025:0557-1
- SUSE-SU-2025:0564-1
- SUSE-SU-2025:0576-1
- SUSE-SU-2025:0577-1
- SUSE-SU-2025:0577-2
- SUSE-SU-2025:0771-1
- SUSE-SU-2025:0834-1
- SUSE-SU-2025:0847-1
- SUSE-SU-2025:0867-1
- SUSE-SU-2025:0983-1
- SUSE-SU-2025:20190-1
- SUSE-SU-2025:20192-1
- SUSE-SU-2025:20260-1
- SUSE-SU-2025:20270-1
- SUSE-SU-2026:0385-1
UBUNTU (1)
- Related
- Published
- 2024-12-27T15:06:21Z
- Modified
- 2026-10-20T10:30:42Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- net: defer final 'struct net' free in netns dismantle
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: defer final 'struct net' free in netns dismantle
Ilya reported a slab-use-after-free in dst_destroy [1]
Issue is in xfrm6_net_init() and xfrm4_net_init() :
They copy xfrm[46]_dst_ops_template into net->xfrm.xfrm[46]_dst_ops.
But net structure might be freed before all the dst callbacks are called. So when dst_destroy() calls later :
if (dst->ops->destroy) dst->ops->destroy(dst);
dst->ops points to the old net->xfrm.xfrm[46]_dst_ops, which has been freed.
See a relevant issue fixed in :
ac888d58869b ("net: do not delay dst_entries_add() in dst_release()")
A fix is to queue the 'struct net' to be freed after one another cleanup_net() round (and existing rcu_barrier())
[1]
BUG: KASAN: slab-use-after-free in dst_destroy (net/core/dst.c:112) Read of size 8 at addr ffff8882137ccab0 by task swapper/37/0 Dec 03 05:46:18 kernel: CPU: 37 UID: 0 PID: 0 Comm: swapper/37 Kdump: loaded Not tainted 6.12.0 #67 Hardware name: Red Hat KVM/RHEL, BIOS 1.16.1-1.el9 04/01/2014 Call Trace: dump_stack_lvl (lib/dump_stack.c:124) print_address_description.constprop.0 (mm/kasan/report.c:378) ? dst_destroy (net/core/dst.c:112) print_report (mm/kasan/report.c:489) ? dst_destroy (net/core/dst.c:112) ? kasan_addr_to_slab (mm/kasan/common.c:37) kasan_report (mm/kasan/report.c:603) ? dst_destroy (net/core/dst.c:112) ? rcu_do_batch (kernel/rcu/tree.c:2567) dst_destroy (net/core/dst.c:112) rcu_do_batch (kernel/rcu/tree.c:2567) ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2491) ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4339 kernel/locking/lockdep.c:4406) rcu_core (kernel/rcu/tree.c:2825) handle_softirqs (kernel/softirq.c:554) __irq_exit_rcu (kernel/softirq.c:589 kernel/softirq.c:428 kernel/softirq.c:637) irq_exit_rcu (kernel/softirq.c:651) sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 arch/x86/kernel/process.c:743) Code: 00 4d 29 c8 4c 01 c7 4c 29 c2 e9 6e ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 90 0f 00 2d c7 c9 27 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 RSP: 0018:ffff888100d2fe00 EFLAGS: 00000246 RAX: 00000000001870ed RBX: 1ffff110201a5fc2 RCX: ffffffffb61a3e46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb3d4d123 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed11c7e1835d R10: ffff888e3f0c1aeb R11: 0000000000000000 R12: 0000000000000000 R13: ffff888100d20000 R14: dffffc0000000000 R15: 0000000000000000 ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:148) ? cpuidle_idle_call (kernel/sched/idle.c:186) default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) cpuidle_idle_call (kernel/sched/idle.c:186) ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) ? lock_release (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5848) ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) do_idle (kernel/sched/idle.c:326) cpu_startup_entry (kernel/sched/idle.c:423 (discriminator 1)) start_secondary (arch/x86/kernel/smpboot.c:202 arch/x86/kernel/smpboot.c:282) ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:232) ? soft_restart_cpu (arch/x86/kernel/head_64.S:452) common_startup_64 (arch/x86/kernel/head_64.S:414) Dec 03 05:46:18 kernel: Allocated by task 12184: kasan_save_stack (mm/kasan/common.c:48) kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) __kasan_slab_alloc (mm/kasan/common.c:319 mm/kasan/common.c:345) kmem_cache_alloc_noprof (mm/slub.c:4085 mm/slub.c:4134 mm/slub.c:4141) copy_net_ns (net/core/net_namespace.c:421 net/core/net_namespace.c:480) create_new_namespaces ---truncated---
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56658.json" }- References
-
- https://git.kernel.org/stable/c/0f6ede9fbc747e2553612271bce108f7517e7a45
- https://git.kernel.org/stable/c/3267b254dc0a04dfa362a2be24573cfa6d2d78f5
- https://git.kernel.org/stable/c/6610c7f8a8d47fd1123eed55ba8c11c2444d8842
- https://git.kernel.org/stable/c/b7a79e51297f7b82adb687086f5cb2da446f1e40
- https://git.kernel.org/stable/c/c261dcd61c9e88a8f1a66654354d32295a975230
- https://git.kernel.org/stable/c/dac465986a4a38cd2f13e934f562b6ca344e5720
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56658.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-56658
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introduceda8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8Fixedc261dcd61c9e88a8f1a66654354d32295a975230Fixeddac465986a4a38cd2f13e934f562b6ca344e5720Fixed3267b254dc0a04dfa362a2be24573cfa6d2d78f5Fixedb7a79e51297f7b82adb687086f5cb2da446f1e40Fixed6610c7f8a8d47fd1123eed55ba8c11c2444d8842Fixed0f6ede9fbc747e2553612271bce108f7517e7a45
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3.12.54Fixed3.13
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3.18.27Fixed3.19
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4.1.17Fixed4.2
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4.3.5Fixed4.4
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3e29fa5b742479f73400468314a1c6b9cf553ee4
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedce43f6a650a6689551a217276fb0dcca33790425
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedeeca98948d8c4922e6deb16bfc9ee0bd9902dbb0
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced1bd631fc9a4515878c1bb7effd19335d2f2d87c2
Affected versions
v3.*
v4.*
Linux / Kernel
Package
- Name
- Kernel