CVE-2023-52796 (GCVE-0-2023-52796)
Vulnerability from cvelistv5 – Published: 2024-05-21 15:31 – Updated: 2026-05-11 19:33
VLAI
EPSS
VEX
Title
ipvlan: add ipvlan_route_v6_outbound() helper
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipvlan: add ipvlan_route_v6_outbound() helper
Inspired by syzbot reports using a stack of multiple ipvlan devices.
Reduce stack size needed in ipvlan_process_v6_outbound() by moving
the flowi6 struct used for the route lookup in an non inlined
helper. ipvlan_route_v6_outbound() needs 120 bytes on the stack,
immediately reclaimed.
Also make sure ipvlan_process_v4_outbound() is not inlined.
We might also have to lower MAX_NEST_DEV, because only syzbot uses
setups with more than four stacked devices.
BUG: TASK stack guard page was hit at ffffc9000e803ff8 (stack is ffffc9000e804000..ffffc9000e808000)
stack guard page: 0000 [#1] SMP KASAN
CPU: 0 PID: 13442 Comm: syz-executor.4 Not tainted 6.1.52-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:kasan_check_range+0x4/0x2a0 mm/kasan/generic.c:188
Code: 48 01 c6 48 89 c7 e8 db 4e c1 03 31 c0 5d c3 cc 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc 00 00 cc cc 00 00 cc cc 55 48 89 e5 <41> 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 a4 01 00 00 48 89
RSP: 0018:ffffc9000e804000 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817e5bf2
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff887c6568
RBP: ffffc9000e804000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001d0080c
R13: dffffc0000000000 R14: ffffffff87e6b100 R15: 0000000000000000
FS: 00007fd0c55826c0(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000e803ff8 CR3: 0000000170ef7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<#DF>
</#DF>
<TASK>
[<ffffffff81f281d1>] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31
[<ffffffff817e5bf2>] instrument_atomic_read include/linux/instrumented.h:72 [inline]
[<ffffffff817e5bf2>] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
[<ffffffff817e5bf2>] cpumask_test_cpu include/linux/cpumask.h:506 [inline]
[<ffffffff817e5bf2>] cpu_online include/linux/cpumask.h:1092 [inline]
[<ffffffff817e5bf2>] trace_lock_acquire include/trace/events/lock.h:24 [inline]
[<ffffffff817e5bf2>] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632
[<ffffffff8563221e>] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306
[<ffffffff8561464d>] rcu_read_lock include/linux/rcupdate.h:747 [inline]
[<ffffffff8561464d>] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221
[<ffffffff85618120>] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606
[<ffffffff856f65b5>] pol_lookup_func include/net/ip6_fib.h:584 [inline]
[<ffffffff856f65b5>] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116
[<ffffffff85618009>] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route.c:2638
[<ffffffff8561821a>] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651
[<ffffffff838bd5a3>] ip6_route_output include/net/ip6_route.h:100 [inline]
[<ffffffff838bd5a3>] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:473 [inline]
[<ffffffff838bd5a3>] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]
[<ffffffff838bd5a3>] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]
[<ffffffff838bd5a3>] ipvlan_queue_xmit+0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677
[<ffffffff838c2909>] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229
[<ffffffff84d03900>] netdev_start_xmit include/linux/netdevice.h:4966 [inline]
[<ffffffff84d03900>] xmit_one net/core/dev.c:3644 [inline]
[<ffffffff84d03900>] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660
[<ffffffff84d080e2>] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324
[<ffffffff855ce4cd>] dev_queue_xmit include/linux/netdevice.h:3067 [inline]
[<ffffffff855ce4cd>] neigh_hh_output include/net/neighbour.h:529 [inline]
[<f
---truncated---
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-22 19:45 UTC
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
2ad7bf3638411cb547f2823df08166c13ab04269 , < 4f7f850611aa27aaaf1bf5687702ad2240ae442a
(git)
Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 4d2d30f0792b47908af64c4d02ed1ee25ff50542 (git) Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 43b781e7cb5cd0b435de276111953bf2bacd1f02 (git) Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 1f64cad3ac38ac5978b53c40e6c5e6fd3477c68f (git) Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 732a67ca436887b594ebc43bb5a04ffb0971a760 (git) Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 8872dc638c24bb774cd2224a69d72a7f661a4d56 (git) Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 03cddc4df8c6be47fd27c8f8b87e5f9a989e1458 (git) Affected: 2ad7bf3638411cb547f2823df08166c13ab04269 , < 18f039428c7df183b09c69ebf10ffd4e521035d2 (git) |
guessed | |
| Linux | Linux |
Affected:
3.19
Unaffected: 0 , < 3.19 (semver) Unaffected: 4.19.300 , ≤ 4.19.* (semver) Unaffected: 5.4.262 , ≤ 5.4.* (semver) Unaffected: 5.10.202 , ≤ 5.10.* (semver) Unaffected: 5.15.140 , ≤ 5.15.* (semver) Unaffected: 6.1.64 , ≤ 6.1.* (semver) Unaffected: 6.5.13 , ≤ 6.5.* (semver) Unaffected: 6.6.3 , ≤ 6.6.* (semver) Unaffected: 6.7 , ≤ * (original_commit_for_fix) |
guessed |
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvlan: add ipvlan_route_v6_outbound() helper\n\nInspired by syzbot reports using a stack of multiple ipvlan devices.\n\nReduce stack size needed in ipvlan_process_v6_outbound() by moving\nthe flowi6 struct used for the route lookup in an non inlined\nhelper. ipvlan_route_v6_outbound() needs 120 bytes on the stack,\nimmediately reclaimed.\n\nAlso make sure ipvlan_process_v4_outbound() is not inlined.\n\nWe might also have to lower MAX_NEST_DEV, because only syzbot uses\nsetups with more than four stacked devices.\n\nBUG: TASK stack guard page was hit at ffffc9000e803ff8 (stack is ffffc9000e804000..ffffc9000e808000)\nstack guard page: 0000 [#1] SMP KASAN\nCPU: 0 PID: 13442 Comm: syz-executor.4 Not tainted 6.1.52-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023\nRIP: 0010:kasan_check_range+0x4/0x2a0 mm/kasan/generic.c:188\nCode: 48 01 c6 48 89 c7 e8 db 4e c1 03 31 c0 5d c3 cc 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc 00 00 cc cc 00 00 cc cc 55 48 89 e5 \u003c41\u003e 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 a4 01 00 00 48 89\nRSP: 0018:ffffc9000e804000 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817e5bf2\nRDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff887c6568\nRBP: ffffc9000e804000 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001d0080c\nR13: dffffc0000000000 R14: ffffffff87e6b100 R15: 0000000000000000\nFS: 00007fd0c55826c0(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffc9000e803ff8 CR3: 0000000170ef7000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003c#DF\u003e\n\u003c/#DF\u003e\n\u003cTASK\u003e\n[\u003cffffffff81f281d1\u003e] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31\n[\u003cffffffff817e5bf2\u003e] instrument_atomic_read include/linux/instrumented.h:72 [inline]\n[\u003cffffffff817e5bf2\u003e] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]\n[\u003cffffffff817e5bf2\u003e] cpumask_test_cpu include/linux/cpumask.h:506 [inline]\n[\u003cffffffff817e5bf2\u003e] cpu_online include/linux/cpumask.h:1092 [inline]\n[\u003cffffffff817e5bf2\u003e] trace_lock_acquire include/trace/events/lock.h:24 [inline]\n[\u003cffffffff817e5bf2\u003e] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632\n[\u003cffffffff8563221e\u003e] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306\n[\u003cffffffff8561464d\u003e] rcu_read_lock include/linux/rcupdate.h:747 [inline]\n[\u003cffffffff8561464d\u003e] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221\n[\u003cffffffff85618120\u003e] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606\n[\u003cffffffff856f65b5\u003e] pol_lookup_func include/net/ip6_fib.h:584 [inline]\n[\u003cffffffff856f65b5\u003e] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116\n[\u003cffffffff85618009\u003e] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route.c:2638\n[\u003cffffffff8561821a\u003e] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651\n[\u003cffffffff838bd5a3\u003e] ip6_route_output include/net/ip6_route.h:100 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:473 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_queue_xmit+0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[\u003cffffffff838c2909\u003e] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[\u003cffffffff84d03900\u003e] netdev_start_xmit include/linux/netdevice.h:4966 [inline]\n[\u003cffffffff84d03900\u003e] xmit_one net/core/dev.c:3644 [inline]\n[\u003cffffffff84d03900\u003e] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[\u003cffffffff84d080e2\u003e] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324\n[\u003cffffffff855ce4cd\u003e] dev_queue_xmit include/linux/netdevice.h:3067 [inline]\n[\u003cffffffff855ce4cd\u003e] neigh_hh_output include/net/neighbour.h:529 [inline]\n[\u003cf\n---truncated---"
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],
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},
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},
{
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},
{
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"versionType": "semver"
},
{
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"status": "unaffected",
"version": "5.10.202",
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},
{
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"version": "6.5.13",
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},
{
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"version": "6.6.3",
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},
{
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"status": "unaffected",
"version": "6.7",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvlan: add ipvlan_route_v6_outbound() helper\n\nInspired by syzbot reports using a stack of multiple ipvlan devices.\n\nReduce stack size needed in ipvlan_process_v6_outbound() by moving\nthe flowi6 struct used for the route lookup in an non inlined\nhelper. ipvlan_route_v6_outbound() needs 120 bytes on the stack,\nimmediately reclaimed.\n\nAlso make sure ipvlan_process_v4_outbound() is not inlined.\n\nWe might also have to lower MAX_NEST_DEV, because only syzbot uses\nsetups with more than four stacked devices.\n\nBUG: TASK stack guard page was hit at ffffc9000e803ff8 (stack is ffffc9000e804000..ffffc9000e808000)\nstack guard page: 0000 [#1] SMP KASAN\nCPU: 0 PID: 13442 Comm: syz-executor.4 Not tainted 6.1.52-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023\nRIP: 0010:kasan_check_range+0x4/0x2a0 mm/kasan/generic.c:188\nCode: 48 01 c6 48 89 c7 e8 db 4e c1 03 31 c0 5d c3 cc 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc 00 00 cc cc 00 00 cc cc 55 48 89 e5 \u003c41\u003e 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 a4 01 00 00 48 89\nRSP: 0018:ffffc9000e804000 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817e5bf2\nRDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff887c6568\nRBP: ffffc9000e804000 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001d0080c\nR13: dffffc0000000000 R14: ffffffff87e6b100 R15: 0000000000000000\nFS: 00007fd0c55826c0(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffc9000e803ff8 CR3: 0000000170ef7000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003c#DF\u003e\n\u003c/#DF\u003e\n\u003cTASK\u003e\n[\u003cffffffff81f281d1\u003e] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31\n[\u003cffffffff817e5bf2\u003e] instrument_atomic_read include/linux/instrumented.h:72 [inline]\n[\u003cffffffff817e5bf2\u003e] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]\n[\u003cffffffff817e5bf2\u003e] cpumask_test_cpu include/linux/cpumask.h:506 [inline]\n[\u003cffffffff817e5bf2\u003e] cpu_online include/linux/cpumask.h:1092 [inline]\n[\u003cffffffff817e5bf2\u003e] trace_lock_acquire include/trace/events/lock.h:24 [inline]\n[\u003cffffffff817e5bf2\u003e] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632\n[\u003cffffffff8563221e\u003e] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306\n[\u003cffffffff8561464d\u003e] rcu_read_lock include/linux/rcupdate.h:747 [inline]\n[\u003cffffffff8561464d\u003e] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221\n[\u003cffffffff85618120\u003e] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606\n[\u003cffffffff856f65b5\u003e] pol_lookup_func include/net/ip6_fib.h:584 [inline]\n[\u003cffffffff856f65b5\u003e] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116\n[\u003cffffffff85618009\u003e] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route.c:2638\n[\u003cffffffff8561821a\u003e] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651\n[\u003cffffffff838bd5a3\u003e] ip6_route_output include/net/ip6_route.h:100 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:473 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_queue_xmit+0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[\u003cffffffff838c2909\u003e] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[\u003cffffffff84d03900\u003e] netdev_start_xmit include/linux/netdevice.h:4966 [inline]\n[\u003cffffffff84d03900\u003e] xmit_one net/core/dev.c:3644 [inline]\n[\u003cffffffff84d03900\u003e] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[\u003cffffffff84d080e2\u003e] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324\n[\u003cffffffff855ce4cd\u003e] dev_queue_xmit include/linux/netdevice.h:3067 [inline]\n[\u003cffffffff855ce4cd\u003e] neigh_hh_output include/net/neighbour.h:529 [inline]\n[\u003cf\n---truncated---"
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ipvlan: agregue el asistente ipvlan_route_v6_outbound(). Inspirado en los informes de syzbot que utilizan una pila de m\u00faltiples dispositivos ipvlan. Reduzca el tama\u00f1o de pila necesario en ipvlan_process_v6_outbound() moviendo la estructura flowi6 utilizada para la b\u00fasqueda de rutas en un asistente no integrado. ipvlan_route_v6_outbound() necesita 120 bytes en la pila, que se recuperan inmediatamente. Tambi\u00e9n aseg\u00farese de que ipvlan_process_v4_outbound() no est\u00e9 incluido. Es posible que tambi\u00e9n tengamos que reducir MAX_NEST_DEV, porque solo syzbot usa configuraciones con m\u00e1s de cuatro dispositivos apilados. ERROR: La p\u00e1gina de protecci\u00f3n de la pila de TAREA fue alcanzada en ffffc9000e803ff8 (la pila es ffffc9000e804000..ffffc9000e808000) p\u00e1gina de protecci\u00f3n de la pila: 0000 [#1] SMP KASAN CPU: 0 PID: 13442 Comm: syz-executor.4 No contaminado 6.1.52-syzkaller # 0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/10/2023 RIP: 0010:kasan_check_range+0x4/0x2a0 mm/kasan/generic.c:188 C\u00f3digo: 48 01 c6 48 89 c7 e8 db 4e c1 03 31 c0 5d c3 cc 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc 00 00 cc cc 00 00 cc cc 55 48 89 e5 \u0026lt;41\u0026gt; 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0 f 84 a4 01 00 00 48 89 RSP: 0018:ffffc9000e804000 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00000000000000000 RCX: ffffffff817e5bf2 RDX: 000000000 RSI: 0000000000000008 RDI: ffffffff887c6568 RBP: ffffc9000e804000 R08: 00000000000000000 R09: 0000000000000000 R10: 000000000000000 00 R11: dffffc0000000001 R12: 1ffff92001d0080c R13: dffffc0000000000 R14: ffffffff87e6b100 R15: 0000000000000000 FS: 00007fd0c55826c0(0000) GS:ffff8881f6800000(0000) knlGS:00000000000000 00 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000e803ff8 CR3: 0000000170ef7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Seguimiento de llamadas: \u0026lt;#DF\u0026gt; [] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31 [] instrument_atomic_read include/linux/instrumented.h:72 [en l\u00ednea] [] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [en l\u00ednea] [] cpumask_test_cpu include/linux /cpumask.h:506 [en l\u00ednea] [] cpu_online include/linux/cpumask.h:1092 [en l\u00ednea] [] trace_lock_acquire include/trace/events/lock.h:24 [en l\u00ednea] [] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632 [] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306 [] rcu_read_lock include/linux/rcupdate.h:747 [en l\u00ednea] [] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221 [] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606 [ ] pol_lookup_func incluir/net /ip6_fib.h:584 [en l\u00ednea] [] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116 [] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route .c:2638 [] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651 [] ip6_route_output include/net/ip6_route.h:100 [en l\u00ednea] [] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan _core.c: 473 [en l\u00ednea] [] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [en l\u00ednea] [] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [en l\u00ednea] [ ] ipvlan_queue_xmit +0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677 [] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229 [] netdev_start_xmit include/linux/netdevice.h: 4966 [en l\u00ednea] [] xmit_one net/core/dev.c:3644 [en l\u00ednea] [] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660 [] __dev_queue_xmit+ 0x16b2/ 0x3370 net/core/dev.c:4324 --truncado--"
}
],
"id": "CVE-2023-52796",
"lastModified": "2026-06-17T06:43:35.960",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-52796",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-05-22T19:45:36.487225Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-21T16:15:18.157",
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-10-29T08:04:16+00:00",
"cve": "CVE-2023-52796",
"id": "CVE-2023-52796",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:fixed": "429",
"product_status:known_not_affected": "50",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: ipvlan: add ipvlan_route_v6_outbound() helper",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52796.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T23:11:36.019Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
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{
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],
"url": "https://git.kernel.org/stable/c/4f7f850611aa27aaaf1bf5687702ad2240ae442a"
},
{
"tags": [
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],
"url": "https://git.kernel.org/stable/c/4d2d30f0792b47908af64c4d02ed1ee25ff50542"
},
{
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"url": "https://git.kernel.org/stable/c/43b781e7cb5cd0b435de276111953bf2bacd1f02"
},
{
"tags": [
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"url": "https://git.kernel.org/stable/c/1f64cad3ac38ac5978b53c40e6c5e6fd3477c68f"
},
{
"tags": [
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],
"url": "https://git.kernel.org/stable/c/732a67ca436887b594ebc43bb5a04ffb0971a760"
},
{
"tags": [
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"url": "https://git.kernel.org/stable/c/8872dc638c24bb774cd2224a69d72a7f661a4d56"
},
{
"tags": [
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],
"url": "https://git.kernel.org/stable/c/03cddc4df8c6be47fd27c8f8b87e5f9a989e1458"
},
{
"tags": [
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],
"url": "https://git.kernel.org/stable/c/18f039428c7df183b09c69ebf10ffd4e521035d2"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-52796",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-05-22T19:45:36.487225Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-05-22T19:46:48.668Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ipvlan/ipvlan_core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "4f7f850611aa27aaaf1bf5687702ad2240ae442a",
"status": "affected",
"version": "2ad7bf3638411cb547f2823df08166c13ab04269",
"versionType": "git"
},
{
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{
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"versionType": "git"
},
{
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"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ipvlan/ipvlan_core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.19"
},
{
"lessThan": "3.19",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.300",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.262",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.202",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.140",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.64",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.5.*",
"status": "unaffected",
"version": "6.5.13",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.7",
"versionType": "original_commit_for_fix"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvlan: add ipvlan_route_v6_outbound() helper\n\nInspired by syzbot reports using a stack of multiple ipvlan devices.\n\nReduce stack size needed in ipvlan_process_v6_outbound() by moving\nthe flowi6 struct used for the route lookup in an non inlined\nhelper. ipvlan_route_v6_outbound() needs 120 bytes on the stack,\nimmediately reclaimed.\n\nAlso make sure ipvlan_process_v4_outbound() is not inlined.\n\nWe might also have to lower MAX_NEST_DEV, because only syzbot uses\nsetups with more than four stacked devices.\n\nBUG: TASK stack guard page was hit at ffffc9000e803ff8 (stack is ffffc9000e804000..ffffc9000e808000)\nstack guard page: 0000 [#1] SMP KASAN\nCPU: 0 PID: 13442 Comm: syz-executor.4 Not tainted 6.1.52-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023\nRIP: 0010:kasan_check_range+0x4/0x2a0 mm/kasan/generic.c:188\nCode: 48 01 c6 48 89 c7 e8 db 4e c1 03 31 c0 5d c3 cc 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc 00 00 cc cc 00 00 cc cc 55 48 89 e5 \u003c41\u003e 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 a4 01 00 00 48 89\nRSP: 0018:ffffc9000e804000 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817e5bf2\nRDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff887c6568\nRBP: ffffc9000e804000 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001d0080c\nR13: dffffc0000000000 R14: ffffffff87e6b100 R15: 0000000000000000\nFS: 00007fd0c55826c0(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffc9000e803ff8 CR3: 0000000170ef7000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003c#DF\u003e\n\u003c/#DF\u003e\n\u003cTASK\u003e\n[\u003cffffffff81f281d1\u003e] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31\n[\u003cffffffff817e5bf2\u003e] instrument_atomic_read include/linux/instrumented.h:72 [inline]\n[\u003cffffffff817e5bf2\u003e] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]\n[\u003cffffffff817e5bf2\u003e] cpumask_test_cpu include/linux/cpumask.h:506 [inline]\n[\u003cffffffff817e5bf2\u003e] cpu_online include/linux/cpumask.h:1092 [inline]\n[\u003cffffffff817e5bf2\u003e] trace_lock_acquire include/trace/events/lock.h:24 [inline]\n[\u003cffffffff817e5bf2\u003e] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632\n[\u003cffffffff8563221e\u003e] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306\n[\u003cffffffff8561464d\u003e] rcu_read_lock include/linux/rcupdate.h:747 [inline]\n[\u003cffffffff8561464d\u003e] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221\n[\u003cffffffff85618120\u003e] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606\n[\u003cffffffff856f65b5\u003e] pol_lookup_func include/net/ip6_fib.h:584 [inline]\n[\u003cffffffff856f65b5\u003e] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116\n[\u003cffffffff85618009\u003e] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route.c:2638\n[\u003cffffffff8561821a\u003e] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651\n[\u003cffffffff838bd5a3\u003e] ip6_route_output include/net/ip6_route.h:100 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:473 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[\u003cffffffff838bd5a3\u003e] ipvlan_queue_xmit+0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[\u003cffffffff838c2909\u003e] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[\u003cffffffff84d03900\u003e] netdev_start_xmit include/linux/netdevice.h:4966 [inline]\n[\u003cffffffff84d03900\u003e] xmit_one net/core/dev.c:3644 [inline]\n[\u003cffffffff84d03900\u003e] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[\u003cffffffff84d080e2\u003e] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324\n[\u003cffffffff855ce4cd\u003e] dev_queue_xmit include/linux/netdevice.h:3067 [inline]\n[\u003cffffffff855ce4cd\u003e] neigh_hh_output include/net/neighbour.h:529 [inline]\n[\u003cf\n---truncated---"
}
],
"providerMetadata": {
"dateUpdated": "2024-12-19T08:26:08.089Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/4f7f850611aa27aaaf1bf5687702ad2240ae442a"
},
{
"url": "https://git.kernel.org/stable/c/4d2d30f0792b47908af64c4d02ed1ee25ff50542"
},
{
"url": "https://git.kernel.org/stable/c/43b781e7cb5cd0b435de276111953bf2bacd1f02"
},
{
"url": "https://git.kernel.org/stable/c/1f64cad3ac38ac5978b53c40e6c5e6fd3477c68f"
},
{
"url": "https://git.kernel.org/stable/c/732a67ca436887b594ebc43bb5a04ffb0971a760"
},
{
"url": "https://git.kernel.org/stable/c/8872dc638c24bb774cd2224a69d72a7f661a4d56"
},
{
"url": "https://git.kernel.org/stable/c/03cddc4df8c6be47fd27c8f8b87e5f9a989e1458"
},
{
"url": "https://git.kernel.org/stable/c/18f039428c7df183b09c69ebf10ffd4e521035d2"
}
],
"title": "ipvlan: add ipvlan_route_v6_outbound() helper",
"x_generator": {
"engine": "bippy-5f407fcff5a0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-52796",
"datePublished": "2024-05-21T15:31:10.290Z",
"dateReserved": "2024-05-21T15:19:24.246Z",
"dateUpdated": "2024-12-19T08:26:08.089Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.