CVE-2024-40981 (GCVE-0-2024-40981)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:32 – Updated: 2026-05-11 20:23
VLAI
Title
batman-adv: bypass empty buckets in batadv_purge_orig_ref()
Summary
In the Linux kernel, the following vulnerability has been resolved: batman-adv: bypass empty buckets in batadv_purge_orig_ref() Many syzbot reports are pointing to soft lockups in batadv_purge_orig_ref() [1] Root cause is unknown, but we can avoid spending too much time there and perhaps get more interesting reports. [1] watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621] Modules linked in: irq event stamp: 6182794 hardirqs last enabled at (6182793): [<ffff8000801dae10>] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [<ffff80008ad66a78>] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [<ffff80008ad66a78>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last enabled at (6182792): [<ffff80008aab71c4>] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (6182792): [<ffff80008aab71c4>] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [<ffff80008aab61dc>] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [<ffff80008aab61dc>] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271 CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Workqueue: bat_events batadv_purge_orig pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 sp : ffff800099007970 x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000 x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001 x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4 x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0 x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001 x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000 Call trace: __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline] arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline] __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300 process_one_work+0x694/0x1204 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103 sp : ffff800093a17d30 x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4 x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002 x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000 x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396 x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001 ---truncated---
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: fb778ea173fcd58b8fc3d75c674f07fab187b55f , < 79636f636126775436a11ee9cf00a9253a33ac11 (git)
Affected: fb778ea173fcd58b8fc3d75c674f07fab187b55f , < 154e3f862ba33675cf3f4abf0a0a309a89df87d2 (git)
Affected: fb778ea173fcd58b8fc3d75c674f07fab187b55f , < 82cdea8f3af1e36543c937df963d108c60bea030 (git)
Affected: fb778ea173fcd58b8fc3d75c674f07fab187b55f , < 92176caf9896572f00e741a93cecc0ef1172da07 (git)
Affected: fb778ea173fcd58b8fc3d75c674f07fab187b55f , < fed7914858a1f1f3e6350bb0f620d6ef15107d16 (git)
Affected: fb778ea173fcd58b8fc3d75c674f07fab187b55f , < 2685008a5f9a636434a8508419cee8158a2f52c8 (git)
Affected: fb778ea173fcd58b8fc3d75c674f07fab187b55f , < ae7f3cffe86aea3da0e8e079525a1ae619b8862a (git)
Affected: fb778ea173fcd58b8fc3d75c674f07fab187b55f , < 40dc8ab605894acae1473e434944924a22cfaaa0 (git)
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Linux Linux Affected: 2.6.39
Unaffected: 0 , < 2.6.39 (semver)
Unaffected: 4.19.317 , ≤ 4.19.* (semver)
Unaffected: 5.4.279 , ≤ 5.4.* (semver)
Unaffected: 5.10.221 , ≤ 5.10.* (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.96 , ≤ 6.1.* (semver)
Unaffected: 6.6.36 , ≤ 6.6.* (semver)
Unaffected: 6.9.7 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bypass empty buckets in batadv_purge_orig_ref()\n\nMany syzbot reports are pointing to soft lockups in\nbatadv_purge_orig_ref() [1]\n\nRoot cause is unknown, but we can avoid spending too much\ntime there and perhaps get more interesting reports.\n\n[1]\n\nwatchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]\nModules linked in:\nirq event stamp: 6182794\n hardirqs last  enabled at (6182793): [\u003cffff8000801dae10\u003e] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386\n hardirqs last disabled at (6182794): [\u003cffff80008ad66a78\u003e] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]\n hardirqs last disabled at (6182794): [\u003cffff80008ad66a78\u003e] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551\n softirqs last  enabled at (6182792): [\u003cffff80008aab71c4\u003e] spin_unlock_bh include/linux/spinlock.h:396 [inline]\n softirqs last  enabled at (6182792): [\u003cffff80008aab71c4\u003e] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287\n softirqs last disabled at (6182790): [\u003cffff80008aab61dc\u003e] spin_lock_bh include/linux/spinlock.h:356 [inline]\n softirqs last disabled at (6182790): [\u003cffff80008aab61dc\u003e] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271\nCPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\nWorkqueue: bat_events batadv_purge_orig\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]\n pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388\n lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386\nsp : ffff800099007970\nx29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000\nx26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001\nx23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4\nx20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0\nx17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001\nx14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003\nx11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000\nx8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000\nx5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000\nx2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000\nCall trace:\n  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]\n  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]\n  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386\n  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]\n  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210\n  spin_unlock_bh include/linux/spinlock.h:396 [inline]\n  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287\n  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300\n  process_one_work+0x694/0x1204 kernel/workqueue.c:2633\n  process_scheduled_works kernel/workqueue.c:2706 [inline]\n  worker_thread+0x938/0xef4 kernel/workqueue.c:2787\n  kthread+0x288/0x310 kernel/kthread.c:388\n  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860\nSending NMI from CPU 0 to CPUs 1:\nNMI backtrace for cpu 1\nCPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51\n lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103\nsp : ffff800093a17d30\nx29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4\nx26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002\nx23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000\nx20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396\nx17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001\n---truncated---"
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    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.19.317\", \"matchCriteriaId\": \"AD25C2E5-C116-4160-BA6D-CE9B0D10AE3E\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.20\", \"versionEndExcluding\": \"5.4.279\", \"matchCriteriaId\": \"F4E38E58-1B9F-4DF2-AD3D-A8BEAA2959D8\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.5\", \"versionEndExcluding\": \"5.10.221\", \"matchCriteriaId\": \"659E1520-6345-41AF-B893-A7C0647585A0\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.15.162\", \"matchCriteriaId\": \"10A39ACC-3005-40E8-875C-98A372D1FFD5\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.16\", \"versionEndExcluding\": \"6.1.96\", \"matchCriteriaId\": \"61E887B4-732A-40D2-9983-CC6F281EBFB7\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.2\", \"versionEndExcluding\": \"6.6.36\", \"matchCriteriaId\": \"E1046C95-860A-45B0-B718-2B29F65BFF10\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.7\", \"versionEndExcluding\": \"6.9.7\", \"matchCriteriaId\": \"0A047AF2-94AC-4A3A-B32D-6AB930D8EF1C\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbatman-adv: bypass empty buckets in batadv_purge_orig_ref()\\n\\nMany syzbot reports are pointing to soft lockups in\\nbatadv_purge_orig_ref() [1]\\n\\nRoot cause is unknown, but we can avoid spending too much\\ntime there and perhaps get more interesting reports.\\n\\n[1]\\n\\nwatchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]\\nModules linked in:\\nirq event stamp: 6182794\\n hardirqs last  enabled at (6182793): [\u003cffff8000801dae10\u003e] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386\\n hardirqs last disabled at (6182794): [\u003cffff80008ad66a78\u003e] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]\\n hardirqs last disabled at (6182794): [\u003cffff80008ad66a78\u003e] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551\\n softirqs last  enabled at (6182792): [\u003cffff80008aab71c4\u003e] spin_unlock_bh include/linux/spinlock.h:396 [inline]\\n softirqs last  enabled at (6182792): [\u003cffff80008aab71c4\u003e] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287\\n softirqs last disabled at (6182790): [\u003cffff80008aab61dc\u003e] spin_lock_bh include/linux/spinlock.h:356 [inline]\\n softirqs last disabled at (6182790): [\u003cffff80008aab61dc\u003e] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271\\nCPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\\nWorkqueue: bat_events batadv_purge_orig\\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]\\n pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388\\n lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386\\nsp : ffff800099007970\\nx29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000\\nx26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001\\nx23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4\\nx20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0\\nx17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001\\nx14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003\\nx11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000\\nx8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000\\nx5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000\\nx2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000\\nCall trace:\\n  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]\\n  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]\\n  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386\\n  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]\\n  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210\\n  spin_unlock_bh include/linux/spinlock.h:396 [inline]\\n  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287\\n  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300\\n  process_one_work+0x694/0x1204 kernel/workqueue.c:2633\\n  process_scheduled_works kernel/workqueue.c:2706 [inline]\\n  worker_thread+0x938/0xef4 kernel/workqueue.c:2787\\n  kthread+0x288/0x310 kernel/kthread.c:388\\n  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860\\nSending NMI from CPU 0 to CPUs 1:\\nNMI backtrace for cpu 1\\nCPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51\\n lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103\\nsp : ffff800093a17d30\\nx29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4\\nx26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002\\nx23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000\\nx20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396\\nx17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001\\n---truncated---\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: batman-adv: evita dep\\u00f3sitos vac\\u00edos en batadv_purge_orig_ref() Muchos informes de syzbot apuntan a bloqueos suaves en batadv_purge_orig_ref() [1] Se desconoce la causa ra\\u00edz, pero podemos evitar gastar demasiado pasar tiempo all\\u00ed y tal vez obtener informes m\\u00e1s interesantes. [1] perro guardi\\u00e1n: ERROR: bloqueo suave - \\u00a1CPU#0 bloqueada durante 27 segundos! [kworker/u4:6:621] M\\u00f3dulos vinculados en: sello de evento irq: 6182794 hardirqs habilitados por \\u00faltima vez en (6182793): [] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs deshabilitados por \\u00faltima vez en (6182794) : [] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs deshabilitado por \\u00faltima vez en (6182794): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common .c:551 softirqs habilitado por \\u00faltima vez en (6182792): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs habilitado por \\u00faltima vez en (6182792): [] batadv_purge_orig_ref+0x114c/0x122 8 netos/ batman-adv/originator.c:1287 softirqs deshabilitados por \\u00faltima vez en (6182790): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs deshabilitados por \\u00faltima vez en (6182790): [] batadv_purge_orig_ref+ 0x164/0x1228 net/batman-adv/originator.c:1271 CPU: 0 PID: 621 Comm: kworker/u4:6 No contaminado 6.8.0-rc7-syzkaller-g707081b61156 #0 Nombre de hardware: Google Google Compute Engine/Google Compute Motor, BIOS Google 29/02/2024 Cola de trabajo: bat_events batadv_purge_orig pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc: deber\\u00eda_resched arch/arm64/include/asm/preempt.h:79 [en l\\u00ednea] pc: __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr: __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 sp: ffff800099007970 x29: ffff800099007980 x28: 018fce1bd x27: dfff800000000000 x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24 : 0000000000000001 x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4 x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: a817bb0 x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001 x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000000 3 x11: 0000000000000000 x10: 0000000000ff0100 x9: 0000000000000000 x8: 00000000005e5789 x7: ffff80008aab61dc x6: 0000000000000000 x5: 0000000000000000 x4: 0000000000000001 x3: 00000000000000000 x2: 0000000000000006 x1: 00000000000080 x0: ffff800125414000 Rastreo de llamadas: __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [en l\\u00ednea] arch_local_irq_enable arch/arm64/include /asm/irqflags.h:49 [en l\\u00ednea] __local_bh_enable_ip+0x228/0x44c kernel/softirq.c: 386 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h: 167 [en l\\u00ednea] 210 spin_unlock_bh include/linux/spinlock.h:396 [en l\\u00ednea] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300 Process_one_work+0x694/0x120 4 kernel/workqueue.c:2633 Process_scheduled_works kernel/workqueue.c:2706 [en l\\u00ednea] trabajador_thread+0x938/0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64 /kernel/entry.S:860 Env\\u00edo de NMI desde la CPU 0 a las CPU 1: rastreo de NMI para la CPU 1 CPU: 1 PID: 0 Comm: swapper/1 No contaminado 6.8.0-rc7-syzkaller-g707081b61156 #0 Nombre de hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 29/02/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc: arch_local_irq_enable+0x8/0xc arch/arm64/include/asm /irqflags.h:51 lr: default_idle_call+0xf8/0x128 kernel/sched/idle.c:103 sp: ffff800093a17d30 x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4 x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002 x23: 1ffff00011d93a74 x22:---truncado---\"}]",
      "id": "CVE-2024-40981",
      "lastModified": "2024-11-21T09:31:59.973",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
      "published": "2024-07-12T13:15:19.627",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/154e3f862ba33675cf3f4abf0a0a309a89df87d2\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/2685008a5f9a636434a8508419cee8158a2f52c8\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/40dc8ab605894acae1473e434944924a22cfaaa0\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/79636f636126775436a11ee9cf00a9253a33ac11\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/82cdea8f3af1e36543c937df963d108c60bea030\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/92176caf9896572f00e741a93cecc0ef1172da07\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/ae7f3cffe86aea3da0e8e079525a1ae619b8862a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/fed7914858a1f1f3e6350bb0f620d6ef15107d16\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/154e3f862ba33675cf3f4abf0a0a309a89df87d2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/2685008a5f9a636434a8508419cee8158a2f52c8\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/40dc8ab605894acae1473e434944924a22cfaaa0\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/79636f636126775436a11ee9cf00a9253a33ac11\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/82cdea8f3af1e36543c937df963d108c60bea030\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/92176caf9896572f00e741a93cecc0ef1172da07\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/ae7f3cffe86aea3da0e8e079525a1ae619b8862a\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/fed7914858a1f1f3e6350bb0f620d6ef15107d16\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-667\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-40981\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-12T13:15:19.627\",\"lastModified\":\"2026-06-17T07:47:00.870\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbatman-adv: bypass empty buckets in batadv_purge_orig_ref()\\n\\nMany syzbot reports are pointing to soft lockups in\\nbatadv_purge_orig_ref() [1]\\n\\nRoot cause is unknown, but we can avoid spending too much\\ntime there and perhaps get more interesting reports.\\n\\n[1]\\n\\nwatchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]\\nModules linked in:\\nirq event stamp: 6182794\\n hardirqs last  enabled at (6182793): [\u003cffff8000801dae10\u003e] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386\\n hardirqs last disabled at (6182794): [\u003cffff80008ad66a78\u003e] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]\\n hardirqs last disabled at (6182794): [\u003cffff80008ad66a78\u003e] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551\\n softirqs last  enabled at (6182792): [\u003cffff80008aab71c4\u003e] spin_unlock_bh include/linux/spinlock.h:396 [inline]\\n softirqs last  enabled at (6182792): [\u003cffff80008aab71c4\u003e] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287\\n softirqs last disabled at (6182790): [\u003cffff80008aab61dc\u003e] spin_lock_bh include/linux/spinlock.h:356 [inline]\\n softirqs last disabled at (6182790): [\u003cffff80008aab61dc\u003e] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271\\nCPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\\nWorkqueue: bat_events batadv_purge_orig\\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]\\n pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388\\n lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386\\nsp : ffff800099007970\\nx29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000\\nx26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001\\nx23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4\\nx20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0\\nx17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001\\nx14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003\\nx11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000\\nx8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000\\nx5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000\\nx2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000\\nCall trace:\\n  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]\\n  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]\\n  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386\\n  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]\\n  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210\\n  spin_unlock_bh include/linux/spinlock.h:396 [inline]\\n  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287\\n  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300\\n  process_one_work+0x694/0x1204 kernel/workqueue.c:2633\\n  process_scheduled_works kernel/workqueue.c:2706 [inline]\\n  worker_thread+0x938/0xef4 kernel/workqueue.c:2787\\n  kthread+0x288/0x310 kernel/kthread.c:388\\n  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860\\nSending NMI from CPU 0 to CPUs 1:\\nNMI backtrace for cpu 1\\nCPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51\\n lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103\\nsp : ffff800093a17d30\\nx29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4\\nx26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002\\nx23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000\\nx20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396\\nx17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: batman-adv: evita dep\u00f3sitos vac\u00edos en batadv_purge_orig_ref() Muchos informes de syzbot apuntan a bloqueos suaves en batadv_purge_orig_ref() [1] Se desconoce la causa ra\u00edz, pero podemos evitar gastar demasiado pasar tiempo all\u00ed y tal vez obtener informes m\u00e1s interesantes. [1] perro guardi\u00e1n: ERROR: bloqueo suave - \u00a1CPU#0 bloqueada durante 27 segundos! [kworker/u4:6:621] M\u00f3dulos vinculados en: sello de evento irq: 6182794 hardirqs habilitados por \u00faltima vez en (6182793): [] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs deshabilitados por \u00faltima vez en (6182794) : [] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs deshabilitado por \u00faltima vez en (6182794): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common .c:551 softirqs habilitado por \u00faltima vez en (6182792): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs habilitado por \u00faltima vez en (6182792): [] batadv_purge_orig_ref+0x114c/0x122 8 netos/ batman-adv/originator.c:1287 softirqs deshabilitados por \u00faltima vez en (6182790): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs deshabilitados por \u00faltima vez en (6182790): [] batadv_purge_orig_ref+ 0x164/0x1228 net/batman-adv/originator.c:1271 CPU: 0 PID: 621 Comm: kworker/u4:6 No contaminado 6.8.0-rc7-syzkaller-g707081b61156 #0 Nombre de hardware: Google Google Compute Engine/Google Compute Motor, BIOS Google 29/02/2024 Cola de trabajo: bat_events batadv_purge_orig pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc: deber\u00eda_resched arch/arm64/include/asm/preempt.h:79 [en l\u00ednea] pc: __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr: __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 sp: ffff800099007970 x29: ffff800099007980 x28: 018fce1bd x27: dfff800000000000 x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24 : 0000000000000001 x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4 x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: a817bb0 x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001 x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000000 3 x11: 0000000000000000 x10: 0000000000ff0100 x9: 0000000000000000 x8: 00000000005e5789 x7: ffff80008aab61dc x6: 0000000000000000 x5: 0000000000000000 x4: 0000000000000001 x3: 00000000000000000 x2: 0000000000000006 x1: 00000000000080 x0: ffff800125414000 Rastreo de llamadas: __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [en l\u00ednea] arch_local_irq_enable arch/arm64/include /asm/irqflags.h:49 [en l\u00ednea] __local_bh_enable_ip+0x228/0x44c kernel/softirq.c: 386 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h: 167 [en l\u00ednea] 210 spin_unlock_bh include/linux/spinlock.h:396 [en l\u00ednea] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300 Process_one_work+0x694/0x120 4 kernel/workqueue.c:2633 Process_scheduled_works kernel/workqueue.c:2706 [en l\u00ednea] trabajador_thread+0x938/0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64 /kernel/entry.S:860 Env\u00edo de NMI desde la CPU 0 a las CPU 1: rastreo de NMI para la CPU 1 CPU: 1 PID: 0 Comm: swapper/1 No contaminado 6.8.0-rc7-syzkaller-g707081b61156 #0 Nombre de hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 29/02/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc: arch_local_irq_enable+0x8/0xc arch/arm64/include/asm /irqflags.h:51 lr: default_idle_call+0xf8/0x128 kernel/sched/idle.c:103 sp: ffff800093a17d30 x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4 x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002 x23: 1ffff00011d93a74 x22:---truncado---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/batman-adv/originator.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"fb778ea173fcd58b8fc3d75c674f07fab187b55f\",\"lessThan\":\"79636f636126775436a11ee9cf00a9253a33ac11\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fb778ea173fcd58b8fc3d75c674f07fab187b55f\",\"lessThan\":\"154e3f862ba33675cf3f4abf0a0a309a89df87d2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fb778ea173fcd58b8fc3d75c674f07fab187b55f\",\"lessThan\":\"82cdea8f3af1e36543c937df963d108c60bea030\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fb778ea173fcd58b8fc3d75c674f07fab187b55f\",\"lessThan\":\"92176caf9896572f00e741a93cecc0ef1172da07\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fb778ea173fcd58b8fc3d75c674f07fab187b55f\",\"lessThan\":\"fed7914858a1f1f3e6350bb0f620d6ef15107d16\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fb778ea173fcd58b8fc3d75c674f07fab187b55f\",\"lessThan\":\"2685008a5f9a636434a8508419cee8158a2f52c8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fb778ea173fcd58b8fc3d75c674f07fab187b55f\",\"lessThan\":\"ae7f3cffe86aea3da0e8e079525a1ae619b8862a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fb778ea173fcd58b8fc3d75c674f07fab187b55f\",\"lessThan\":\"40dc8ab605894acae1473e434944924a22cfaaa0\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/batman-adv/originator.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.39\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.39\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.317\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.279\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.221\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.162\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.96\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.36\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.9.7\",\"lessThanOrEqual\":\"6.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T17:02:19.871778Z\",\"id\":\"CVE-2024-40981\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-02-02T11:00:23+00:00",
      "cve": "CVE-2024-40981",
      "id": "CVE-2024-40981",
      "initial_release_date": "2024-07-12T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: batman-adv: bypass empty buckets in batadv_purge_orig_ref()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-40981.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-07-19T17:58:43Z",
      "cve": "CVE-2024-40981",
      "id": "CVE-2024-40981",
      "initial_release_date": "2024-07-16T02:34:10Z",
      "product_status:known_affected": "495",
      "product_status:known_not_affected": "19",
      "product_status:recommended": "658",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-40981",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-40981.json",
      "version": "94"
    },
    "vulnrichment": {
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\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"fb778ea173fcd58b8fc3d75c674f07fab187b55f\", \"lessThan\": \"79636f636126775436a11ee9cf00a9253a33ac11\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb778ea173fcd58b8fc3d75c674f07fab187b55f\", \"lessThan\": \"154e3f862ba33675cf3f4abf0a0a309a89df87d2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb778ea173fcd58b8fc3d75c674f07fab187b55f\", \"lessThan\": \"82cdea8f3af1e36543c937df963d108c60bea030\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb778ea173fcd58b8fc3d75c674f07fab187b55f\", \"lessThan\": \"92176caf9896572f00e741a93cecc0ef1172da07\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb778ea173fcd58b8fc3d75c674f07fab187b55f\", \"lessThan\": \"fed7914858a1f1f3e6350bb0f620d6ef15107d16\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb778ea173fcd58b8fc3d75c674f07fab187b55f\", \"lessThan\": \"2685008a5f9a636434a8508419cee8158a2f52c8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb778ea173fcd58b8fc3d75c674f07fab187b55f\", \"lessThan\": \"ae7f3cffe86aea3da0e8e079525a1ae619b8862a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fb778ea173fcd58b8fc3d75c674f07fab187b55f\", \"lessThan\": \"40dc8ab605894acae1473e434944924a22cfaaa0\", \"versionType\": \"git\"}], \"programFiles\": [\"net/batman-adv/originator.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.39\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.39\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.317\", \"versionType\": \"semver\", 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\"https://git.kernel.org/stable/c/79636f636126775436a11ee9cf00a9253a33ac11\"}, {\"url\": \"https://git.kernel.org/stable/c/154e3f862ba33675cf3f4abf0a0a309a89df87d2\"}, {\"url\": \"https://git.kernel.org/stable/c/82cdea8f3af1e36543c937df963d108c60bea030\"}, {\"url\": \"https://git.kernel.org/stable/c/92176caf9896572f00e741a93cecc0ef1172da07\"}, {\"url\": \"https://git.kernel.org/stable/c/fed7914858a1f1f3e6350bb0f620d6ef15107d16\"}, {\"url\": \"https://git.kernel.org/stable/c/2685008a5f9a636434a8508419cee8158a2f52c8\"}, {\"url\": \"https://git.kernel.org/stable/c/ae7f3cffe86aea3da0e8e079525a1ae619b8862a\"}, {\"url\": \"https://git.kernel.org/stable/c/40dc8ab605894acae1473e434944924a22cfaaa0\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbatman-adv: bypass empty buckets in batadv_purge_orig_ref()\\n\\nMany syzbot reports are pointing to soft lockups in\\nbatadv_purge_orig_ref() [1]\\n\\nRoot cause is unknown, but we can avoid spending too much\\ntime there and perhaps get more interesting reports.\\n\\n[1]\\n\\nwatchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]\\nModules linked in:\\nirq event stamp: 6182794\\n hardirqs last  enabled at (6182793): [\u003cffff8000801dae10\u003e] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386\\n hardirqs last disabled at (6182794): [\u003cffff80008ad66a78\u003e] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]\\n hardirqs last disabled at (6182794): [\u003cffff80008ad66a78\u003e] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551\\n softirqs last  enabled at (6182792): [\u003cffff80008aab71c4\u003e] spin_unlock_bh include/linux/spinlock.h:396 [inline]\\n softirqs last  enabled at (6182792): [\u003cffff80008aab71c4\u003e] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287\\n softirqs last disabled at (6182790): [\u003cffff80008aab61dc\u003e] spin_lock_bh include/linux/spinlock.h:356 [inline]\\n softirqs last disabled at (6182790): [\u003cffff80008aab61dc\u003e] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271\\nCPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\\nWorkqueue: bat_events batadv_purge_orig\\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]\\n pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388\\n lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386\\nsp : ffff800099007970\\nx29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000\\nx26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001\\nx23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4\\nx20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0\\nx17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001\\nx14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003\\nx11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000\\nx8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000\\nx5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000\\nx2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000\\nCall trace:\\n  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]\\n  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]\\n  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386\\n  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]\\n  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210\\n  spin_unlock_bh include/linux/spinlock.h:396 [inline]\\n  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287\\n  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300\\n  process_one_work+0x694/0x1204 kernel/workqueue.c:2633\\n  process_scheduled_works kernel/workqueue.c:2706 [inline]\\n  worker_thread+0x938/0xef4 kernel/workqueue.c:2787\\n  kthread+0x288/0x310 kernel/kthread.c:388\\n  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860\\nSending NMI from CPU 0 to CPUs 1:\\nNMI backtrace for cpu 1\\nCPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51\\n lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103\\nsp : ffff800093a17d30\\nx29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4\\nx26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002\\nx23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000\\nx20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396\\nx17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.317\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.279\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.221\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.162\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.96\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.36\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.7\", \"versionStartIncluding\": \"2.6.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"2.6.39\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:23:35.464Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-40981\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:23:35.464Z\", \"dateReserved\": \"2024-07-12T12:17:45.604Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-12T12:32:16.277Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.