| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: defer final 'struct net' free in netns dismantle\n\nIlya reported a slab-use-after-free in dst_destroy [1]\n\nIssue is in xfrm6_net_init() and xfrm4_net_init() :\n\nThey copy xfrm[46]_dst_ops_template into net->xfrm.xfrm[46]_dst_ops.\n\nBut net structure might be freed before all the dst callbacks are\ncalled. So when dst_destroy() calls later :\n\nif (dst->ops->destroy)\n dst->ops->destroy(dst);\n\ndst->ops points to the old net->xfrm.xfrm[46]_dst_ops, which has been freed.\n\nSee a relevant issue fixed in :\n\nac888d58869b (\"net: do not delay dst_entries_add() in dst_release()\")\n\nA fix is to queue the 'struct net' to be freed after one\nanother cleanup_net() round (and existing rcu_barrier())\n\n[1]\n\nBUG: KASAN: slab-use-after-free in dst_destroy (net/core/dst.c:112)\nRead of size 8 at addr ffff8882137ccab0 by task swapper/37/0\nDec 03 05:46:18 kernel:\nCPU: 37 UID: 0 PID: 0 Comm: swapper/37 Kdump: loaded Not tainted 6.12.0 #67\nHardware name: Red Hat KVM/RHEL, BIOS 1.16.1-1.el9 04/01/2014\nCall Trace:\n <IRQ>\ndump_stack_lvl (lib/dump_stack.c:124)\nprint_address_description.constprop.0 (mm/kasan/report.c:378)\n? dst_destroy (net/core/dst.c:112)\nprint_report (mm/kasan/report.c:489)\n? dst_destroy (net/core/dst.c:112)\n? kasan_addr_to_slab (mm/kasan/common.c:37)\nkasan_report (mm/kasan/report.c:603)\n? dst_destroy (net/core/dst.c:112)\n? rcu_do_batch (kernel/rcu/tree.c:2567)\ndst_destroy (net/core/dst.c:112)\nrcu_do_batch (kernel/rcu/tree.c:2567)\n? __pfx_rcu_do_batch (kernel/rcu/tree.c:2491)\n? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4339 kernel/locking/lockdep.c:4406)\nrcu_core (kernel/rcu/tree.c:2825)\nhandle_softirqs (kernel/softirq.c:554)\n__irq_exit_rcu (kernel/softirq.c:589 kernel/softirq.c:428 kernel/softirq.c:637)\nirq_exit_rcu (kernel/softirq.c:651)\nsysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049)\n </IRQ>\n <TASK>\nasm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702)\nRIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 arch/x86/kernel/process.c:743)\nCode: 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 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90\nRSP: 0018:ffff888100d2fe00 EFLAGS: 00000246\nRAX: 00000000001870ed RBX: 1ffff110201a5fc2 RCX: ffffffffb61a3e46\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb3d4d123\nRBP: 0000000000000000 R08: 0000000000000001 R09: ffffed11c7e1835d\nR10: ffff888e3f0c1aeb R11: 0000000000000000 R12: 0000000000000000\nR13: ffff888100d20000 R14: dffffc0000000000 R15: 0000000000000000\n? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:148)\n? cpuidle_idle_call (kernel/sched/idle.c:186)\ndefault_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118)\ncpuidle_idle_call (kernel/sched/idle.c:186)\n? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168)\n? lock_release (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5848)\n? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)\n? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59)\ndo_idle (kernel/sched/idle.c:326)\ncpu_startup_entry (kernel/sched/idle.c:423 (discriminator 1))\nstart_secondary (arch/x86/kernel/smpboot.c:202 arch/x86/kernel/smpboot.c:282)\n? __pfx_start_secondary (arch/x86/kernel/smpboot.c:232)\n? soft_restart_cpu (arch/x86/kernel/head_64.S:452)\ncommon_startup_64 (arch/x86/kernel/head_64.S:414)\n </TASK>\nDec 03 05:46:18 kernel:\nAllocated by task 12184:\nkasan_save_stack (mm/kasan/common.c:48)\nkasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69)\n__kasan_slab_alloc (mm/kasan/common.c:319 mm/kasan/common.c:345)\nkmem_cache_alloc_noprof (mm/slub.c:4085 mm/slub.c:4134 mm/slub.c:4141)\ncopy_net_ns (net/core/net_namespace.c:421 net/core/net_namespace.c:480)\ncreate_new_namespaces\n---truncated---" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "include/net/net_namespace.h", |
| "net/core/net_namespace.c" |
| ], |
| "versions": [ |
| { |
| "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8", |
| "lessThan": "c261dcd61c9e88a8f1a66654354d32295a975230", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8", |
| "lessThan": "dac465986a4a38cd2f13e934f562b6ca344e5720", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8", |
| "lessThan": "3267b254dc0a04dfa362a2be24573cfa6d2d78f5", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8", |
| "lessThan": "b7a79e51297f7b82adb687086f5cb2da446f1e40", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8", |
| "lessThan": "6610c7f8a8d47fd1123eed55ba8c11c2444d8842", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8", |
| "lessThan": "0f6ede9fbc747e2553612271bce108f7517e7a45", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3e29fa5b742479f73400468314a1c6b9cf553ee4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ce43f6a650a6689551a217276fb0dcca33790425", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "eeca98948d8c4922e6deb16bfc9ee0bd9902dbb0", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1bd631fc9a4515878c1bb7effd19335d2f2d87c2", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "include/net/net_namespace.h", |
| "net/core/net_namespace.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.4", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.4", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.237", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.181", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.121", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.67", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.6", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.4", |
| "versionEndExcluding": "5.10.237" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.4", |
| "versionEndExcluding": "5.15.181" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.4", |
| "versionEndExcluding": "6.1.121" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.4", |
| "versionEndExcluding": "6.6.67" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.4", |
| "versionEndExcluding": "6.12.6" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.4", |
| "versionEndExcluding": "6.13" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.12.54" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.18.27" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.1.17" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.3.5" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/c261dcd61c9e88a8f1a66654354d32295a975230" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/dac465986a4a38cd2f13e934f562b6ca344e5720" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3267b254dc0a04dfa362a2be24573cfa6d2d78f5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b7a79e51297f7b82adb687086f5cb2da446f1e40" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6610c7f8a8d47fd1123eed55ba8c11c2444d8842" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0f6ede9fbc747e2553612271bce108f7517e7a45" |
| } |
| ], |
| "title": "net: defer final 'struct net' free in netns dismantle", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-56658", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
