{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-52796", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T15:19:24.246Z", "datePublished": "2024-05-21T15:31:10.290Z", "dateUpdated": "2024-11-04T14:52:53.688Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T14:52:53.688Z"}, "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 <41> 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<#DF>\n</#DF>\n<TASK>\n[<ffffffff81f281d1>] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31\n[<ffffffff817e5bf2>] instrument_atomic_read include/linux/instrumented.h:72 [inline]\n[<ffffffff817e5bf2>] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]\n[<ffffffff817e5bf2>] cpumask_test_cpu include/linux/cpumask.h:506 [inline]\n[<ffffffff817e5bf2>] cpu_online include/linux/cpumask.h:1092 [inline]\n[<ffffffff817e5bf2>] trace_lock_acquire include/trace/events/lock.h:24 [inline]\n[<ffffffff817e5bf2>] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632\n[<ffffffff8563221e>] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306\n[<ffffffff8561464d>] rcu_read_lock include/linux/rcupdate.h:747 [inline]\n[<ffffffff8561464d>] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221\n[<ffffffff85618120>] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606\n[<ffffffff856f65b5>] pol_lookup_func include/net/ip6_fib.h:584 [inline]\n[<ffffffff856f65b5>] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116\n[<ffffffff85618009>] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route.c:2638\n[<ffffffff8561821a>] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651\n[<ffffffff838bd5a3>] ip6_route_output include/net/ip6_route.h:100 [inline]\n[<ffffffff838bd5a3>] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:473 [inline]\n[<ffffffff838bd5a3>] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[<ffffffff838bd5a3>] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[<ffffffff838bd5a3>] ipvlan_queue_xmit+0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[<ffffffff838c2909>] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[<ffffffff84d03900>] netdev_start_xmit include/linux/netdevice.h:4966 [inline]\n[<ffffffff84d03900>] xmit_one net/core/dev.c:3644 [inline]\n[<ffffffff84d03900>] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[<ffffffff84d080e2>] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324\n[<ffffffff855ce4cd>] dev_queue_xmit include/linux/netdevice.h:3067 [inline]\n[<ffffffff855ce4cd>] neigh_hh_output include/net/neighbour.h:529 [inline]\n[<f\n---truncated---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ipvlan/ipvlan_core.c"], "versions": [{"version": "2ad7bf363841", "lessThan": "4f7f850611aa", "status": "affected", "versionType": "git"}, {"version": "2ad7bf363841", "lessThan": "4d2d30f0792b", "status": "affected", "versionType": "git"}, {"version": "2ad7bf363841", "lessThan": "43b781e7cb5c", "status": "affected", "versionType": "git"}, {"version": "2ad7bf363841", "lessThan": "1f64cad3ac38", "status": "affected", "versionType": "git"}, {"version": "2ad7bf363841", "lessThan": "732a67ca4368", "status": "affected", "versionType": "git"}, {"version": "2ad7bf363841", "lessThan": "8872dc638c24", "status": "affected", "versionType": "git"}, {"version": "2ad7bf363841", "lessThan": "03cddc4df8c6", "status": "affected", "versionType": "git"}, {"version": "2ad7bf363841", "lessThan": "18f039428c7d", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ipvlan/ipvlan_core.c"], "versions": [{"version": "3.19", "status": "affected"}, {"version": "0", "lessThan": "3.19", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.300", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.262", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.202", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.140", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.64", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5.13", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.3", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "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-9e1c9544281a"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52796", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-22T19:45:36.487225Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:22:52.629Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:36.019Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/4f7f850611aa27aaaf1bf5687702ad2240ae442a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4d2d30f0792b47908af64c4d02ed1ee25ff50542", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/43b781e7cb5cd0b435de276111953bf2bacd1f02", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1f64cad3ac38ac5978b53c40e6c5e6fd3477c68f", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/732a67ca436887b594ebc43bb5a04ffb0971a760", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/8872dc638c24bb774cd2224a69d72a7f661a4d56", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/03cddc4df8c6be47fd27c8f8b87e5f9a989e1458", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/18f039428c7df183b09c69ebf10ffd4e521035d2", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/4f7f850611aa27aaaf1bf5687702ad2240ae442a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4d2d30f0792b47908af64c4d02ed1ee25ff50542", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/43b781e7cb5cd0b435de276111953bf2bacd1f02", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1f64cad3ac38ac5978b53c40e6c5e6fd3477c68f", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/732a67ca436887b594ebc43bb5a04ffb0971a760", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/8872dc638c24bb774cd2224a69d72a7f661a4d56", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/03cddc4df8c6be47fd27c8f8b87e5f9a989e1458", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/18f039428c7df183b09c69ebf10ffd4e521035d2", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:36.019Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52796", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-22T19:45:36.487225Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-22T19:46:48.668Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "ipvlan: add ipvlan_route_v6_outbound() helper", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2ad7bf363841", "lessThan": "4f7f850611aa", "versionType": "git"}, {"status": "affected", "version": "2ad7bf363841", "lessThan": "4d2d30f0792b", "versionType": "git"}, {"status": "affected", "version": "2ad7bf363841", "lessThan": "43b781e7cb5c", "versionType": "git"}, {"status": "affected", "version": "2ad7bf363841", "lessThan": "1f64cad3ac38", "versionType": "git"}, {"status": "affected", "version": "2ad7bf363841", "lessThan": "732a67ca4368", "versionType": "git"}, {"status": "affected", "version": "2ad7bf363841", "lessThan": "8872dc638c24", "versionType": "git"}, {"status": "affected", "version": "2ad7bf363841", "lessThan": "03cddc4df8c6", "versionType": "git"}, {"status": "affected", "version": "2ad7bf363841", "lessThan": "18f039428c7d", "versionType": "git"}], "programFiles": ["drivers/net/ipvlan/ipvlan_core.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.19"}, {"status": "unaffected", "version": "0", "lessThan": "3.19", "versionType": "semver"}, {"status": "unaffected", "version": "4.19.300", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.262", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.202", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.140", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.64", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.5.13", "versionType": "semver", "lessThanOrEqual": "6.5.*"}, {"status": "unaffected", "version": "6.6.3", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.7", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ipvlan/ipvlan_core.c"], "defaultStatus": "affected"}], "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"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "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 <41> 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<#DF>\n</#DF>\n<TASK>\n[<ffffffff81f281d1>] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31\n[<ffffffff817e5bf2>] instrument_atomic_read include/linux/instrumented.h:72 [inline]\n[<ffffffff817e5bf2>] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]\n[<ffffffff817e5bf2>] cpumask_test_cpu include/linux/cpumask.h:506 [inline]\n[<ffffffff817e5bf2>] cpu_online include/linux/cpumask.h:1092 [inline]\n[<ffffffff817e5bf2>] trace_lock_acquire include/trace/events/lock.h:24 [inline]\n[<ffffffff817e5bf2>] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632\n[<ffffffff8563221e>] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306\n[<ffffffff8561464d>] rcu_read_lock include/linux/rcupdate.h:747 [inline]\n[<ffffffff8561464d>] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221\n[<ffffffff85618120>] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606\n[<ffffffff856f65b5>] pol_lookup_func include/net/ip6_fib.h:584 [inline]\n[<ffffffff856f65b5>] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116\n[<ffffffff85618009>] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route.c:2638\n[<ffffffff8561821a>] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651\n[<ffffffff838bd5a3>] ip6_route_output include/net/ip6_route.h:100 [inline]\n[<ffffffff838bd5a3>] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:473 [inline]\n[<ffffffff838bd5a3>] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[<ffffffff838bd5a3>] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[<ffffffff838bd5a3>] ipvlan_queue_xmit+0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[<ffffffff838c2909>] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[<ffffffff84d03900>] netdev_start_xmit include/linux/netdevice.h:4966 [inline]\n[<ffffffff84d03900>] xmit_one net/core/dev.c:3644 [inline]\n[<ffffffff84d03900>] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[<ffffffff84d080e2>] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324\n[<ffffffff855ce4cd>] dev_queue_xmit include/linux/netdevice.h:3067 [inline]\n[<ffffffff855ce4cd>] neigh_hh_output include/net/neighbour.h:529 [inline]\n[<f\n---truncated---"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T14:52:53.688Z"}}}, "cveMetadata": {"cveId": "CVE-2023-52796", "state": "PUBLISHED", "dateUpdated": "2024-11-04T14:52:53.688Z", "dateReserved": "2024-05-21T15:19:24.246Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-21T15:31:10.290Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"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 <41> 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<#DF>\n</#DF>\n<TASK>\n[<ffffffff81f281d1>] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31\n[<ffffffff817e5bf2>] instrument_atomic_read include/linux/instrumented.h:72 [inline]\n[<ffffffff817e5bf2>] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]\n[<ffffffff817e5bf2>] cpumask_test_cpu include/linux/cpumask.h:506 [inline]\n[<ffffffff817e5bf2>] cpu_online include/linux/cpumask.h:1092 [inline]\n[<ffffffff817e5bf2>] trace_lock_acquire include/trace/events/lock.h:24 [inline]\n[<ffffffff817e5bf2>] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632\n[<ffffffff8563221e>] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306\n[<ffffffff8561464d>] rcu_read_lock include/linux/rcupdate.h:747 [inline]\n[<ffffffff8561464d>] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221\n[<ffffffff85618120>] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606\n[<ffffffff856f65b5>] pol_lookup_func include/net/ip6_fib.h:584 [inline]\n[<ffffffff856f65b5>] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116\n[<ffffffff85618009>] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route.c:2638\n[<ffffffff8561821a>] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651\n[<ffffffff838bd5a3>] ip6_route_output include/net/ip6_route.h:100 [inline]\n[<ffffffff838bd5a3>] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:473 [inline]\n[<ffffffff838bd5a3>] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[<ffffffff838bd5a3>] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[<ffffffff838bd5a3>] ipvlan_queue_xmit+0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[<ffffffff838c2909>] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[<ffffffff84d03900>] netdev_start_xmit include/linux/netdevice.h:4966 [inline]\n[<ffffffff84d03900>] xmit_one net/core/dev.c:3644 [inline]\n[<ffffffff84d03900>] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[<ffffffff84d080e2>] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324\n[<ffffffff855ce4cd>] dev_queue_xmit include/linux/netdevice.h:3067 [inline]\n[<ffffffff855ce4cd>] neigh_hh_output include/net/neighbour.h:529 [inline]\n[<f\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 &lt;41&gt; 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: &lt;#DF&gt; [] __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": "2024-11-21T08:40:36.233", "metrics": {}, "published": "2024-05-21T16:15:18.157", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/03cddc4df8c6be47fd27c8f8b87e5f9a989e1458"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/18f039428c7df183b09c69ebf10ffd4e521035d2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1f64cad3ac38ac5978b53c40e6c5e6fd3477c68f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/43b781e7cb5cd0b435de276111953bf2bacd1f02"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4d2d30f0792b47908af64c4d02ed1ee25ff50542"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4f7f850611aa27aaaf1bf5687702ad2240ae442a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/732a67ca436887b594ebc43bb5a04ffb0971a760"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8872dc638c24bb774cd2224a69d72a7f661a4d56"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/03cddc4df8c6be47fd27c8f8b87e5f9a989e1458"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/18f039428c7df183b09c69ebf10ffd4e521035d2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/1f64cad3ac38ac5978b53c40e6c5e6fd3477c68f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/43b781e7cb5cd0b435de276111953bf2bacd1f02"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/4d2d30f0792b47908af64c4d02ed1ee25ff50542"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/4f7f850611aa27aaaf1bf5687702ad2240ae442a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/732a67ca436887b594ebc43bb5a04ffb0971a760"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/8872dc638c24bb774cd2224a69d72a7f661a4d56"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"affected_release": [{"advisory": "RHSA-2024:5102", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.16.1.rt7.357.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-08-08T00:00:00Z"}, {"advisory": "RHSA-2024:5101", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.16.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-08-08T00:00:00Z"}], "bugzilla": {"description": "kernel: ipvlan: add ipvlan_route_v6_outbound() helper", "id": "2282766", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282766"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-121", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nipvlan: add ipvlan_route_v6_outbound() helper\nInspired by syzbot reports using a stack of multiple ipvlan devices.\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.\nAlso make sure ipvlan_process_v4_outbound() is not inlined.\nWe might also have to lower MAX_NEST_DEV, because only syzbot uses\nsetups with more than four stacked devices.\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 <41> 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<#DF>\n</#DF>\n<TASK>\n[<ffffffff81f281d1>] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31\n[<ffffffff817e5bf2>] instrument_atomic_read include/linux/instrumented.h:72 [inline]\n[<ffffffff817e5bf2>] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]\n[<ffffffff817e5bf2>] cpumask_test_cpu include/linux/cpumask.h:506 [inline]\n[<ffffffff817e5bf2>] cpu_online include/linux/cpumask.h:1092 [inline]\n[<ffffffff817e5bf2>] trace_lock_acquire include/trace/events/lock.h:24 [inline]\n[<ffffffff817e5bf2>] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632\n[<ffffffff8563221e>] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306\n[<ffffffff8561464d>] rcu_read_lock include/linux/rcupdate.h:747 [inline]\n[<ffffffff8561464d>] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221\n[<ffffffff85618120>] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606\n[<ffffffff856f65b5>] pol_lookup_func include/net/ip6_fib.h:584 [inline]\n[<ffffffff856f65b5>] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116\n[<ffffffff85618009>] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route.c:2638\n[<ffffffff8561821a>] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651\n[<ffffffff838bd5a3>] ip6_route_output include/net/ip6_route.h:100 [inline]\n[<ffffffff838bd5a3>] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:473 [inline]\n[<ffffffff838bd5a3>] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[<ffffffff838bd5a3>] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[<ffffffff838bd5a3>] ipvlan_queue_xmit+0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[<ffffffff838c2909>] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[<ffffffff84d03900>] netdev_start_xmit include/linux/netdevice.h:4966 [inline]\n[<ffffffff84d03900>] xmit_one net/core/dev.c:3644 [inline]\n[<ffffffff84d03900>] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[<ffffffff84d080e2>] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324\n[<ffffffff855ce4cd>] dev_queue_xmit include/linux/netdevice.h:3067 [inline]\n[<ffffffff855ce4cd>] neigh_hh_output include/net/neighbour.h:529 [inline]\n[<f\n---truncated---"], "name": "CVE-2023-52796", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52796\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52796\nhttps://lore.kernel.org/linux-cve-announce/2024052158-CVE-2023-52796-860d@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 4.19.300, kernel 5.4.262, kernel 5.10.202, kernel 5.15.140, kernel 6.1.64, kernel 6.5.13, kernel 6.6.3, kernel 6.7"}