{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2024-35886", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-17T13:50:33.112Z", "datePublished": "2024-05-19T08:34:42.694Z", "dateUpdated": "2024-11-05T09:24:27.370Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:24:27.370Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix infinite recursion in fib6_dump_done().\n\nsyzkaller reported infinite recursive calls of fib6_dump_done() during\nnetlink socket destruction. [1]\n\nFrom the log, syzkaller sent an AF_UNSPEC RTM_GETROUTE message, and then\nthe response was generated. The following recvmmsg() resumed the dump\nfor IPv6, but the first call of inet6_dump_fib() failed at kzalloc() due\nto the fault injection. [0]\n\n 12:01:34 executing program 3:\n r0 = socket$nl_route(0x10, 0x3, 0x0)\n sendmsg$nl_route(r0, ... snip ...)\n recvmmsg(r0, ... snip ...) (fail_nth: 8)\n\nHere, fib6_dump_done() was set to nlk_sk(sk)->cb.done, and the next call\nof inet6_dump_fib() set it to nlk_sk(sk)->cb.args[3]. syzkaller stopped\nreceiving the response halfway through, and finally netlink_sock_destruct()\ncalled nlk_sk(sk)->cb.done().\n\nfib6_dump_done() calls fib6_dump_end() and nlk_sk(sk)->cb.done() if it\nis still not NULL. fib6_dump_end() rewrites nlk_sk(sk)->cb.done() by\nnlk_sk(sk)->cb.args[3], but it has the same function, not NULL, calling\nitself recursively and hitting the stack guard page.\n\nTo avoid the issue, let's set the destructor after kzalloc().\n\n[0]:\nFAULT_INJECTION: forcing a failure.\nname failslab, interval 1, probability 0, space 0, times 0\nCPU: 1 PID: 432110 Comm: syz-executor.3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nCall Trace:\n <TASK>\n dump_stack_lvl (lib/dump_stack.c:117)\n should_fail_ex (lib/fault-inject.c:52 lib/fault-inject.c:153)\n should_failslab (mm/slub.c:3733)\n kmalloc_trace (mm/slub.c:3748 mm/slub.c:3827 mm/slub.c:3992)\n inet6_dump_fib (./include/linux/slab.h:628 ./include/linux/slab.h:749 net/ipv6/ip6_fib.c:662)\n rtnl_dump_all (net/core/rtnetlink.c:4029)\n netlink_dump (net/netlink/af_netlink.c:2269)\n netlink_recvmsg (net/netlink/af_netlink.c:1988)\n ____sys_recvmsg (net/socket.c:1046 net/socket.c:2801)\n ___sys_recvmsg (net/socket.c:2846)\n do_recvmmsg (net/socket.c:2943)\n __x64_sys_recvmmsg (net/socket.c:3041 net/socket.c:3034 net/socket.c:3034)\n\n[1]:\nBUG: TASK stack guard page was hit at 00000000f2fa9af1 (stack is 00000000b7912430..000000009a436beb)\nstack guard page: 0000 [#1] PREEMPT SMP KASAN\nCPU: 1 PID: 223719 Comm: kworker/1:3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nWorkqueue: events netlink_sock_destruct_work\nRIP: 0010:fib6_dump_done (net/ipv6/ip6_fib.c:570)\nCode: 3c 24 e8 f3 e9 51 fd e9 28 fd ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 57 41 56 41 55 41 54 55 48 89 fd <53> 48 8d 5d 60 e8 b6 4d 07 fd 48 89 da 48 b8 00 00 00 00 00 fc ff\nRSP: 0018:ffffc9000d980000 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: ffffffff84405990 RCX: ffffffff844059d3\nRDX: ffff8881028e0000 RSI: ffffffff84405ac2 RDI: ffff88810c02f358\nRBP: ffff88810c02f358 R08: 0000000000000007 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000224 R12: 0000000000000000\nR13: ffff888007c82c78 R14: ffff888007c82c68 R15: ffff888007c82c68\nFS: 0000000000000000(0000) GS:ffff88811b100000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffc9000d97fff8 CR3: 0000000102309002 CR4: 0000000000770ef0\nPKRU: 55555554\nCall Trace:\n <#DF>\n </#DF>\n <TASK>\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n ...\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n netlink_sock_destruct (net/netlink/af_netlink.c:401)\n __sk_destruct (net/core/sock.c:2177 (discriminator 2))\n sk_destruct (net/core/sock.c:2224)\n __sk_free (net/core/sock.c:2235)\n sk_free (net/core/sock.c:2246)\n process_one_work (kernel/workqueue.c:3259)\n worker_thread (kernel/workqueue.c:3329 kernel/workqueue.\n---truncated---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/ip6_fib.c"], "versions": [{"version": "1da177e4c3f4", "lessThan": "9472d07cd095", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "9c5258196182", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "fd307f2d91d4", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "40a344b2ddc0", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "167d4b47a9bd", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "f2dd75e57285", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "4a7c465a5dcd", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "d21d40605bca", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/ip6_fib.c"], "versions": [{"version": "2.6.12", "status": "affected"}, {"version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.312", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.274", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.215", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.154", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.85", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.26", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8.5", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/9472d07cd095cbd3294ac54c42f304a38fbe9bfe"}, {"url": "https://git.kernel.org/stable/c/9c5258196182c25b55c33167cd72fdd9bbf08985"}, {"url": "https://git.kernel.org/stable/c/fd307f2d91d40fa7bc55df3e2cd1253fabf8a2d6"}, {"url": "https://git.kernel.org/stable/c/40a344b2ddc06c1a2caa7208a43911f39c662778"}, {"url": "https://git.kernel.org/stable/c/167d4b47a9bdcb01541dfa29e9f3cbb8edd3dfd2"}, {"url": "https://git.kernel.org/stable/c/f2dd75e57285f49e34af1a5b6cd8945c08243776"}, {"url": "https://git.kernel.org/stable/c/4a7c465a5dcd657d59d25bf4815e19ac05c13061"}, {"url": "https://git.kernel.org/stable/c/d21d40605bca7bd5fc23ef03d4c1ca1f48bc2cae"}], "title": "ipv6: Fix infinite recursion in fib6_dump_done().", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-35886", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-20T15:12:24.428695Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:33:53.014Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T03:21:48.390Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/9472d07cd095cbd3294ac54c42f304a38fbe9bfe", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/9c5258196182c25b55c33167cd72fdd9bbf08985", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/fd307f2d91d40fa7bc55df3e2cd1253fabf8a2d6", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/40a344b2ddc06c1a2caa7208a43911f39c662778", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/167d4b47a9bdcb01541dfa29e9f3cbb8edd3dfd2", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/f2dd75e57285f49e34af1a5b6cd8945c08243776", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4a7c465a5dcd657d59d25bf4815e19ac05c13061", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d21d40605bca7bd5fc23ef03d4c1ca1f48bc2cae", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "tags": ["x_transferred"]}]}]}, "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-35886", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-20T15:12:24.428695Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:24.947Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "ipv6: Fix infinite recursion in fib6_dump_done().", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "1da177e4c3f4", "lessThan": "9472d07cd095", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "9c5258196182", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "fd307f2d91d4", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "40a344b2ddc0", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "167d4b47a9bd", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "f2dd75e57285", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "4a7c465a5dcd", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "d21d40605bca", "versionType": "git"}], "programFiles": ["net/ipv6/ip6_fib.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.12"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.12", "versionType": "custom"}, {"status": "unaffected", "version": "4.19.312", "versionType": "custom", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.274", "versionType": "custom", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.215", "versionType": "custom", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.154", "versionType": "custom", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.85", "versionType": "custom", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.26", "versionType": "custom", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.8.5", "versionType": "custom", "lessThanOrEqual": "6.8.*"}, {"status": "unaffected", "version": "6.9", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/ipv6/ip6_fib.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/9472d07cd095cbd3294ac54c42f304a38fbe9bfe"}, {"url": "https://git.kernel.org/stable/c/9c5258196182c25b55c33167cd72fdd9bbf08985"}, {"url": "https://git.kernel.org/stable/c/fd307f2d91d40fa7bc55df3e2cd1253fabf8a2d6"}, {"url": "https://git.kernel.org/stable/c/40a344b2ddc06c1a2caa7208a43911f39c662778"}, {"url": "https://git.kernel.org/stable/c/167d4b47a9bdcb01541dfa29e9f3cbb8edd3dfd2"}, {"url": "https://git.kernel.org/stable/c/f2dd75e57285f49e34af1a5b6cd8945c08243776"}, {"url": "https://git.kernel.org/stable/c/4a7c465a5dcd657d59d25bf4815e19ac05c13061"}, {"url": "https://git.kernel.org/stable/c/d21d40605bca7bd5fc23ef03d4c1ca1f48bc2cae"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"}], "x_generator": {"engine": "bippy-a5840b7849dd"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix infinite recursion in fib6_dump_done().\n\nsyzkaller reported infinite recursive calls of fib6_dump_done() during\nnetlink socket destruction. [1]\n\nFrom the log, syzkaller sent an AF_UNSPEC RTM_GETROUTE message, and then\nthe response was generated. The following recvmmsg() resumed the dump\nfor IPv6, but the first call of inet6_dump_fib() failed at kzalloc() due\nto the fault injection. [0]\n\n 12:01:34 executing program 3:\n r0 = socket$nl_route(0x10, 0x3, 0x0)\n sendmsg$nl_route(r0, ... snip ...)\n recvmmsg(r0, ... snip ...) (fail_nth: 8)\n\nHere, fib6_dump_done() was set to nlk_sk(sk)->cb.done, and the next call\nof inet6_dump_fib() set it to nlk_sk(sk)->cb.args[3]. syzkaller stopped\nreceiving the response halfway through, and finally netlink_sock_destruct()\ncalled nlk_sk(sk)->cb.done().\n\nfib6_dump_done() calls fib6_dump_end() and nlk_sk(sk)->cb.done() if it\nis still not NULL. fib6_dump_end() rewrites nlk_sk(sk)->cb.done() by\nnlk_sk(sk)->cb.args[3], but it has the same function, not NULL, calling\nitself recursively and hitting the stack guard page.\n\nTo avoid the issue, let's set the destructor after kzalloc().\n\n[0]:\nFAULT_INJECTION: forcing a failure.\nname failslab, interval 1, probability 0, space 0, times 0\nCPU: 1 PID: 432110 Comm: syz-executor.3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nCall Trace:\n <TASK>\n dump_stack_lvl (lib/dump_stack.c:117)\n should_fail_ex (lib/fault-inject.c:52 lib/fault-inject.c:153)\n should_failslab (mm/slub.c:3733)\n kmalloc_trace (mm/slub.c:3748 mm/slub.c:3827 mm/slub.c:3992)\n inet6_dump_fib (./include/linux/slab.h:628 ./include/linux/slab.h:749 net/ipv6/ip6_fib.c:662)\n rtnl_dump_all (net/core/rtnetlink.c:4029)\n netlink_dump (net/netlink/af_netlink.c:2269)\n netlink_recvmsg (net/netlink/af_netlink.c:1988)\n ____sys_recvmsg (net/socket.c:1046 net/socket.c:2801)\n ___sys_recvmsg (net/socket.c:2846)\n do_recvmmsg (net/socket.c:2943)\n __x64_sys_recvmmsg (net/socket.c:3041 net/socket.c:3034 net/socket.c:3034)\n\n[1]:\nBUG: TASK stack guard page was hit at 00000000f2fa9af1 (stack is 00000000b7912430..000000009a436beb)\nstack guard page: 0000 [#1] PREEMPT SMP KASAN\nCPU: 1 PID: 223719 Comm: kworker/1:3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nWorkqueue: events netlink_sock_destruct_work\nRIP: 0010:fib6_dump_done (net/ipv6/ip6_fib.c:570)\nCode: 3c 24 e8 f3 e9 51 fd e9 28 fd ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 57 41 56 41 55 41 54 55 48 89 fd <53> 48 8d 5d 60 e8 b6 4d 07 fd 48 89 da 48 b8 00 00 00 00 00 fc ff\nRSP: 0018:ffffc9000d980000 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: ffffffff84405990 RCX: ffffffff844059d3\nRDX: ffff8881028e0000 RSI: ffffffff84405ac2 RDI: ffff88810c02f358\nRBP: ffff88810c02f358 R08: 0000000000000007 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000224 R12: 0000000000000000\nR13: ffff888007c82c78 R14: ffff888007c82c68 R15: ffff888007c82c68\nFS: 0000000000000000(0000) GS:ffff88811b100000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffc9000d97fff8 CR3: 0000000102309002 CR4: 0000000000770ef0\nPKRU: 55555554\nCall Trace:\n <#DF>\n </#DF>\n <TASK>\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n ...\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n netlink_sock_destruct (net/netlink/af_netlink.c:401)\n __sk_destruct (net/core/sock.c:2177 (discriminator 2))\n sk_destruct (net/core/sock.c:2224)\n __sk_free (net/core/sock.c:2235)\n sk_free (net/core/sock.c:2246)\n process_one_work (kernel/workqueue.c:3259)\n worker_thread (kernel/workqueue.c:3329 kernel/workqueue.\n---truncated---"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:30:42.121Z"}}}, "cveMetadata": {"cveId": "CVE-2024-35886", "state": "PUBLISHED", "dateUpdated": "2024-05-29T05:30:42.121Z", "dateReserved": "2024-05-17T13:50:33.112Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-19T08:34:42.694Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix infinite recursion in fib6_dump_done().\n\nsyzkaller reported infinite recursive calls of fib6_dump_done() during\nnetlink socket destruction. [1]\n\nFrom the log, syzkaller sent an AF_UNSPEC RTM_GETROUTE message, and then\nthe response was generated. The following recvmmsg() resumed the dump\nfor IPv6, but the first call of inet6_dump_fib() failed at kzalloc() due\nto the fault injection. [0]\n\n 12:01:34 executing program 3:\n r0 = socket$nl_route(0x10, 0x3, 0x0)\n sendmsg$nl_route(r0, ... snip ...)\n recvmmsg(r0, ... snip ...) (fail_nth: 8)\n\nHere, fib6_dump_done() was set to nlk_sk(sk)->cb.done, and the next call\nof inet6_dump_fib() set it to nlk_sk(sk)->cb.args[3]. syzkaller stopped\nreceiving the response halfway through, and finally netlink_sock_destruct()\ncalled nlk_sk(sk)->cb.done().\n\nfib6_dump_done() calls fib6_dump_end() and nlk_sk(sk)->cb.done() if it\nis still not NULL. fib6_dump_end() rewrites nlk_sk(sk)->cb.done() by\nnlk_sk(sk)->cb.args[3], but it has the same function, not NULL, calling\nitself recursively and hitting the stack guard page.\n\nTo avoid the issue, let's set the destructor after kzalloc().\n\n[0]:\nFAULT_INJECTION: forcing a failure.\nname failslab, interval 1, probability 0, space 0, times 0\nCPU: 1 PID: 432110 Comm: syz-executor.3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nCall Trace:\n <TASK>\n dump_stack_lvl (lib/dump_stack.c:117)\n should_fail_ex (lib/fault-inject.c:52 lib/fault-inject.c:153)\n should_failslab (mm/slub.c:3733)\n kmalloc_trace (mm/slub.c:3748 mm/slub.c:3827 mm/slub.c:3992)\n inet6_dump_fib (./include/linux/slab.h:628 ./include/linux/slab.h:749 net/ipv6/ip6_fib.c:662)\n rtnl_dump_all (net/core/rtnetlink.c:4029)\n netlink_dump (net/netlink/af_netlink.c:2269)\n netlink_recvmsg (net/netlink/af_netlink.c:1988)\n ____sys_recvmsg (net/socket.c:1046 net/socket.c:2801)\n ___sys_recvmsg (net/socket.c:2846)\n do_recvmmsg (net/socket.c:2943)\n __x64_sys_recvmmsg (net/socket.c:3041 net/socket.c:3034 net/socket.c:3034)\n\n[1]:\nBUG: TASK stack guard page was hit at 00000000f2fa9af1 (stack is 00000000b7912430..000000009a436beb)\nstack guard page: 0000 [#1] PREEMPT SMP KASAN\nCPU: 1 PID: 223719 Comm: kworker/1:3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nWorkqueue: events netlink_sock_destruct_work\nRIP: 0010:fib6_dump_done (net/ipv6/ip6_fib.c:570)\nCode: 3c 24 e8 f3 e9 51 fd e9 28 fd ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 57 41 56 41 55 41 54 55 48 89 fd <53> 48 8d 5d 60 e8 b6 4d 07 fd 48 89 da 48 b8 00 00 00 00 00 fc ff\nRSP: 0018:ffffc9000d980000 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: ffffffff84405990 RCX: ffffffff844059d3\nRDX: ffff8881028e0000 RSI: ffffffff84405ac2 RDI: ffff88810c02f358\nRBP: ffff88810c02f358 R08: 0000000000000007 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000224 R12: 0000000000000000\nR13: ffff888007c82c78 R14: ffff888007c82c68 R15: ffff888007c82c68\nFS: 0000000000000000(0000) GS:ffff88811b100000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffc9000d97fff8 CR3: 0000000102309002 CR4: 0000000000770ef0\nPKRU: 55555554\nCall Trace:\n <#DF>\n </#DF>\n <TASK>\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n ...\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n netlink_sock_destruct (net/netlink/af_netlink.c:401)\n __sk_destruct (net/core/sock.c:2177 (discriminator 2))\n sk_destruct (net/core/sock.c:2224)\n __sk_free (net/core/sock.c:2235)\n sk_free (net/core/sock.c:2246)\n process_one_work (kernel/workqueue.c:3259)\n worker_thread (kernel/workqueue.c:3329 kernel/workqueue.\n---truncated---"}, {"lang": "es", "value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: ipv6: Se corrigi\u00f3 la recursividad infinita en fib6_dump_done(). syzkaller inform\u00f3 infinitas llamadas recursivas de fib6_dump_done() durante la destrucci\u00f3n del socket netlink. [1] Desde el registro, syzkaller envi\u00f3 un mensaje AF_UNSPEC RTM_GETROUTE y luego se gener\u00f3 la respuesta. El siguiente recvmmsg() reanud\u00f3 el volcado para IPv6, pero la primera llamada de inet6_dump_fib() fall\u00f3 en kzalloc() debido a la inyecci\u00f3n de falla. [0] 12:01:34 ejecutando el programa 3: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, ... recorte ...) recvmmsg(r0, ... recorte ...) (fail_nth: 8) Aqu\u00ed, fib6_dump_done() se configur\u00f3 en nlk_sk(sk)-&gt;cb.done, y la siguiente llamada de inet6_dump_fib() se configur\u00f3 en nlk_sk(sk)-&gt;cb.args[3]. syzkaller dej\u00f3 de recibir la respuesta a la mitad y finalmente netlink_sock_destruct() llam\u00f3 a nlk_sk(sk)-&gt;cb.done(). fib6_dump_done() llama a fib6_dump_end() y nlk_sk(sk)-&gt;cb.done() si todav\u00eda no es NULL. fib6_dump_end() reescribe nlk_sk(sk)-&gt;cb.done() por nlk_sk(sk)-&gt;cb.args[3], pero tiene la misma funci\u00f3n, no NULL, llam\u00e1ndose a s\u00ed mismo de forma recursiva y accediendo a la p\u00e1gina de protecci\u00f3n de pila. Para evitar el problema, configuremos el destructor despu\u00e9s de kzalloc(). [0]: FAULT_INJECTION: forzando un fallo. nombre failslab, intervalo 1, probabilidad 0, espacio 0, tiempos 0 CPU: 1 PID: 432110 Comm: syz-executor.3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX , 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 01/04/2014 Seguimiento de llamadas: dump_stack_lvl (lib/dump_stack.c:117) deber\u00eda_fail_ex (lib/fault-inject.c :52 lib/fault-inject.c:153) must_failslab (mm/slub.c:3733) kmalloc_trace (mm/slub.c:3748 mm/slub.c:3827 mm/slub.c:3992) inet6_dump_fib (./ include/linux/slab.h:628 ./include/linux/slab.h:749 net/ipv6/ip6_fib.c:662) rtnl_dump_all (net/core/rtnetlink.c:4029) netlink_dump (net/netlink/af_netlink. c:2269) netlink_recvmsg (net/netlink/af_netlink.c:1988) ____sys_recvmsg (net/socket.c:1046 net/socket.c:2801) ___sys_recvmsg (net/socket.c:2846) do_recvmmsg (net/socket.c :2943) __x64_sys_recvmmsg (net/socket.c:3041 net/socket.c:3034 net/socket.c:3034) [1]: ERROR: La p\u00e1gina de protecci\u00f3n de la pila de TAREA fue visitada en 00000000f2fa9af1 (la pila es 00000000b7912430..000000009a436be b) pila p\u00e1gina de protecci\u00f3n: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 223719 Comm: kworker/1:3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11 Nombre de hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996) , BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 01/04/2014 Cola de trabajo: eventos netlink_sock_destruct_work RIP: 0010:fib6_dump_done (net/ipv6/ip6_fib.c:570) C\u00f3digo: 3c 24 e8 f3 e9 51 fd e9 28 fd ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 57 41 56 41 55 41 54 55 48 89 fd &lt;53&gt; 48 8d 5d 60 e8 b6 4d 07 fd 48 89 da 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc9000d980000 EFLAGS: 00010293 RAX: 00000000000000000 RBX: ffffffff84405990 RCX: ffffffff844059d3 RDX: 881028e0000 RSI: ffffffff84405ac2 RDI: ffff88810c02f358 RBP: ffff88810c02f358 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 0R11: 0000000000000224 R12: 0000000000000000 R13: ffff888007c82c78 R14: ffff888007c82c68 R15: ffff888007c82c68 FS: 0000000000000000(0000) ffff88811b100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000d97fff8 CR3: 0000000102309002 000000000770ef0 PKRU : 55555554 Seguimiento de llamadas: &lt;#DF&gt; fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminador 1)) fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminador 1)). .. fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminador 1)) fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminador 1)) netlink_sock_destruct (net/netlink/af_netlink.c:401) __sk_destruct (net/ core/sock.c:2177 (discriminador 2)) sk_destruct (net/core/sock.c:2224) __sk_free (net/core/sock.c:2235) sk_free (net/core/sock.c:2246) Process_one_work ( kernel/workqueue.c:3259)-truncado-"}], "id": "CVE-2024-35886", "lastModified": "2024-11-05T10:16:49.100", "metrics": {}, "published": "2024-05-19T09:15:09.757", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/167d4b47a9bdcb01541dfa29e9f3cbb8edd3dfd2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/40a344b2ddc06c1a2caa7208a43911f39c662778"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4a7c465a5dcd657d59d25bf4815e19ac05c13061"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9472d07cd095cbd3294ac54c42f304a38fbe9bfe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9c5258196182c25b55c33167cd72fdd9bbf08985"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d21d40605bca7bd5fc23ef03d4c1ca1f48bc2cae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f2dd75e57285f49e34af1a5b6cd8945c08243776"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fd307f2d91d40fa7bc55df3e2cd1253fabf8a2d6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"affected_release": [{"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}], "bugzilla": {"description": "kernel: ipv6: Fix infinite recursion in fib6_dump_done().", "id": "2281697", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2281697"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nipv6: Fix infinite recursion in fib6_dump_done().\nsyzkaller reported infinite recursive calls of fib6_dump_done() during\nnetlink socket destruction. [1]\nFrom the log, syzkaller sent an AF_UNSPEC RTM_GETROUTE message, and then\nthe response was generated. The following recvmmsg() resumed the dump\nfor IPv6, but the first call of inet6_dump_fib() failed at kzalloc() due\nto the fault injection. [0]\n12:01:34 executing program 3:\nr0 = socket$nl_route(0x10, 0x3, 0x0)\nsendmsg$nl_route(r0, ... snip ...)\nrecvmmsg(r0, ... snip ...) (fail_nth: 8)\nHere, fib6_dump_done() was set to nlk_sk(sk)->cb.done, and the next call\nof inet6_dump_fib() set it to nlk_sk(sk)->cb.args[3]. syzkaller stopped\nreceiving the response halfway through, and finally netlink_sock_destruct()\ncalled nlk_sk(sk)->cb.done().\nfib6_dump_done() calls fib6_dump_end() and nlk_sk(sk)->cb.done() if it\nis still not NULL. fib6_dump_end() rewrites nlk_sk(sk)->cb.done() by\nnlk_sk(sk)->cb.args[3], but it has the same function, not NULL, calling\nitself recursively and hitting the stack guard page.\nTo avoid the issue, let's set the destructor after kzalloc().\n[0]:\nFAULT_INJECTION: forcing a failure.\nname failslab, interval 1, probability 0, space 0, times 0\nCPU: 1 PID: 432110 Comm: syz-executor.3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nCall Trace:\n<TASK>\ndump_stack_lvl (lib/dump_stack.c:117)\nshould_fail_ex (lib/fault-inject.c:52 lib/fault-inject.c:153)\nshould_failslab (mm/slub.c:3733)\nkmalloc_trace (mm/slub.c:3748 mm/slub.c:3827 mm/slub.c:3992)\ninet6_dump_fib (./include/linux/slab.h:628 ./include/linux/slab.h:749 net/ipv6/ip6_fib.c:662)\nrtnl_dump_all (net/core/rtnetlink.c:4029)\nnetlink_dump (net/netlink/af_netlink.c:2269)\nnetlink_recvmsg (net/netlink/af_netlink.c:1988)\n____sys_recvmsg (net/socket.c:1046 net/socket.c:2801)\n___sys_recvmsg (net/socket.c:2846)\ndo_recvmmsg (net/socket.c:2943)\n__x64_sys_recvmmsg (net/socket.c:3041 net/socket.c:3034 net/socket.c:3034)\n[1]:\nBUG: TASK stack guard page was hit at 00000000f2fa9af1 (stack is 00000000b7912430..000000009a436beb)\nstack guard page: 0000 [#1] PREEMPT SMP KASAN\nCPU: 1 PID: 223719 Comm: kworker/1:3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nWorkqueue: events netlink_sock_destruct_work\nRIP: 0010:fib6_dump_done (net/ipv6/ip6_fib.c:570)\nCode: 3c 24 e8 f3 e9 51 fd e9 28 fd ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 57 41 56 41 55 41 54 55 48 89 fd <53> 48 8d 5d 60 e8 b6 4d 07 fd 48 89 da 48 b8 00 00 00 00 00 fc ff\nRSP: 0018:ffffc9000d980000 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: ffffffff84405990 RCX: ffffffff844059d3\nRDX: ffff8881028e0000 RSI: ffffffff84405ac2 RDI: ffff88810c02f358\nRBP: ffff88810c02f358 R08: 0000000000000007 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000224 R12: 0000000000000000\nR13: ffff888007c82c78 R14: ffff888007c82c68 R15: ffff888007c82c68\nFS: 0000000000000000(0000) GS:ffff88811b100000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffc9000d97fff8 CR3: 0000000102309002 CR4: 0000000000770ef0\nPKRU: 55555554\nCall Trace:\n<#DF>\n</#DF>\n<TASK>\nfib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\nfib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n...\nfib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\nfib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\nnetlink_sock_destruct (net/netlink/af_netlink.c:401)\n__sk_destruct (net/core/sock.c:2177 (discriminator 2))\nsk_destruct (net/core/sock.c:2224)\n__sk_free (net/core/sock.c:2235)\nsk_free (net/core/sock.c:2246)\nprocess_one_work (kernel/workqueue.c:3259)\nworker_thread (kernel/workqueue.c:3329 kernel/workqueue.\n---truncated---"], "name": "CVE-2024-35886", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-35886\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-35886\nhttps://lore.kernel.org/linux-cve-announce/2024051946-CVE-2024-35886-19d4@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 4.19.312, kernel 5.4.274, kernel 5.10.215, kernel 5.15.154, kernel 6.1.85, kernel 6.6.26, kernel 6.8.5, kernel 6.9"}