{"schema_version":"1.9.0","id":"CVE-2024-47707","published":"2024-10-21T11:53:41.417Z","modified":"2026-08-12T03:51:09.139028670Z","related":["SUSE-SU-2024:3983-1","SUSE-SU-2024:3984-1","SUSE-SU-2024:3985-1","SUSE-SU-2024:3986-1","SUSE-SU-2024:4100-1","SUSE-SU-2024:4318-1","SUSE-SU-2024:4364-1","SUSE-SU-2024:4387-1","SUSE-SU-2025:0034-1","SUSE-SU-2025:20163-1","SUSE-SU-2025:20164-1","SUSE-SU-2025:20246-1","SUSE-SU-2025:20247-1","USN-7276-1","USN-7277-1","openSUSE-SU-2024:14500-1","openSUSE-SU-2025:14705-1"],"summary":"ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev()\n\nBlamed commit accidentally removed a check for rt->rt6i_idev being NULL,\nas spotted by syzbot:\n\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 1 UID: 0 PID: 10998 Comm: syz-executor Not tainted 6.11.0-rc6-syzkaller-00208-g625403177711 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\n RIP: 0010:rt6_uncached_list_flush_dev net/ipv6/route.c:177 [inline]\n RIP: 0010:rt6_disable_ip+0x33e/0x7e0 net/ipv6/route.c:4914\nCode: 41 80 3c 04 00 74 0a e8 90 d0 9b f7 48 8b 7c 24 08 48 8b 07 48 89 44 24 10 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 64 d0 9b f7 48 8b 44 24 18 49 39 06\nRSP: 0018:ffffc900047374e0 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 1ffff1100fdf8f33 RCX: dffffc0000000000\nRDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807efc78c0\nRBP: ffffc900047375d0 R08: 0000000000000003 R09: fffff520008e6e8c\nR10: dffffc0000000000 R11: fffff520008e6e8c R12: 1ffff1100fdf8f18\nR13: ffff88807efc7998 R14: 0000000000000000 R15: ffff88807efc7930\nFS:  0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020002a80 CR3: 0000000022f62000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n <TASK>\n  addrconf_ifdown+0x15d/0x1bd0 net/ipv6/addrconf.c:3856\n addrconf_notify+0x3cb/0x1020\n  notifier_call_chain+0x19f/0x3e0 kernel/notifier.c:93\n  call_netdevice_notifiers_extack net/core/dev.c:2032 [inline]\n  call_netdevice_notifiers net/core/dev.c:2046 [inline]\n  unregister_netdevice_many_notify+0xd81/0x1c40 net/core/dev.c:11352\n  unregister_netdevice_many net/core/dev.c:11414 [inline]\n  unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11289\n  unregister_netdevice include/linux/netdevice.h:3129 [inline]\n  __tun_detach+0x6b9/0x1600 drivers/net/tun.c:685\n  tun_detach drivers/net/tun.c:701 [inline]\n  tun_chr_close+0x108/0x1b0 drivers/net/tun.c:3510\n  __fput+0x24a/0x8a0 fs/file_table.c:422\n  task_work_run+0x24f/0x310 kernel/task_work.c:228\n  exit_task_work include/linux/task_work.h:40 [inline]\n  do_exit+0xa2f/0x27f0 kernel/exit.c:882\n  do_group_exit+0x207/0x2c0 kernel/exit.c:1031\n  __do_sys_exit_group kernel/exit.c:1042 [inline]\n  __se_sys_exit_group kernel/exit.c:1040 [inline]\n  __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040\n  x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f1acc77def9\nCode: Unable to access opcode bytes at 0x7f1acc77decf.\nRSP: 002b:00007ffeb26fa738 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\nRAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1acc77def9\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043\nRBP: 00007f1acc7dd508 R08: 00007ffeb26f84d7 R09: 0000000000000003\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001\nR13: 0000000000000003 R14: 00000000ffffffff R15: 00007ffeb26fa8e0\n </TASK>\nModules linked in:\n---[ end trace 0000000000000000 ]---\n RIP: 0010:rt6_uncached_list_flush_dev net/ipv6/route.c:177 [inline]\n RIP: 0010:rt6_disable_ip+0x33e/0x7e0 net/ipv6/route.c:4914\nCode: 41 80 3c 04 00 74 0a e8 90 d0 9b f7 48 8b 7c 24 08 48 8b 07 48 89 44 24 10 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 64 d0 9b f7 48 8b 44 24 18 49 39 06\nRSP: 0018:ffffc900047374e0 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 1ffff1100fdf8f33 RCX: dffffc0000000000\nRDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807efc78c0\nR\n---truncated---","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"e332bc67cf5e5e5b71a1aec9750d0791aac65183"},{"fixed":"a61a174280dad99f25a7dee920310885daf2552b"},{"fixed":"8a8b83016f06805775db099c8377024b6fa5b975"},{"fixed":"e43dd28405e6b9935279996725ee11e6306547a5"},{"fixed":"f2bd9635543ca41533b870f420872819f8331823"},{"fixed":"0ceb2f2b5c813f932d6e60d3feec5e7e713da783"},{"fixed":"9a0ddc73be37d19dff1ba08290af34e707d18e50"},{"fixed":"08409e401622e2896b4313be9f781bde8a2a6a53"},{"fixed":"04ccecfa959d3b9ae7348780d8e379c6486176ac"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"58d772c203ee57c45620730198bc2d9ded7a1464"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4.2.5"},{"fixed":"4.3"}]}],"versions":["v4.2.4","v4.2.3","v4.2","v4.2.2","v4.2.1","v4.2-rc2","v4.2-rc1","v4.2-rc8","v4.2-rc4","v4.2-rc6","v4.2-rc7","v4.0-rc5","v4.2-rc5","v4.2-rc3","v4.1-rc2","v4.1","v4.1-rc1","v4.1-rc8","v4.1-rc7","v4.1-rc6","v4.1-rc3","v4.1-rc4","v4.0","v4.1-rc5","v4.0-rc1","v4.0-rc2","v4.0-rc7","v4.0-rc3","v4.0-rc6","v4.0-rc4","v3.19","v3.19-rc7","v3.19-rc5","v3.19-rc1","v3.19-rc6","v3.19-rc4","v3.18-rc1","v3.19-rc3","v3.19-rc2","v3.18","v3.18-rc7","v3.18-rc6","v3.18-rc2","v3.18-rc3","v3.18-rc4","v3.18-rc5","v3.17","v3.17-rc1","v3.17-rc7","v3.17-rc2","v3.17-rc4","v3.16","v3.17-rc5","v3.17-rc6","v3.17-rc3","v3.16-rc7","v3.16-rc1","v3.16-rc3","v3.16-rc5","v3.16-rc6","v3.16-rc2","v3.16-rc4","v3.13","v3.15","v3.15-rc5","v3.15-rc8","v3.15-rc1","v3.15-rc6","v3.15-rc3","v3.15-rc7","v3.15-rc2","v3.15-rc4","v3.14","v3.14-rc4","v3.14-rc8","v3.14-rc7","v3.14-rc6","v3.14-rc1","v3.14-rc2","v3.14-rc5","v3.14-rc3","v3.13-rc6","v3.13-rc8","v3.12","v3.13-rc7","v3.13-rc1","v3.13-rc4","v3.13-rc3","v3.13-rc5","v3.13-rc2","v3.12-rc7","v3.12-rc3","v3.12-rc6","v3.12-rc1","v3.12-rc5","v3.11","v3.12-rc2","v3.12-rc4","v3.11-rc7","v3.11-rc2","v3.11-rc5","v3.11-rc1","v3.11-rc3","v3.11-rc4","v3.11-rc6","v3.10-rc2","v3.10","v3.10-rc7","v3.10-rc6","v3.10-rc1","v3.10-rc5","v3.10-rc3","v3.10-rc4","v3.9","v3.9-rc2","v3.9-rc7","v3.9-rc8","v3.9-rc3","v3.9-rc6","v3.9-rc5","v3.9-rc4","v3.9-rc1","v3.8","v3.8-rc7","v3.8-rc6","v3.8-rc5","v3.8-rc2","v3.8-rc1","v3.8-rc3","v3.8-rc4","v3.7","v3.7-rc1","v3.6","v3.7-rc6","v3.7-rc7","v3.7-rc3","v3.7-rc8","v3.7-rc2","v3.7-rc4","v3.7-rc5","v3.6-rc7","v3.6-rc1","v3.5-rc3","v3.6-rc6","v3.6-rc5","v3.5","v3.6-rc3","v3.6-rc4","v3.6-rc2","v3.4-rc4","v3.5-rc7","v3.5-rc5","v3.5-rc6","v3.5-rc2","v3.5-rc1","v3.5-rc4","v3.4","v3.4-rc2","v3.4-rc1","v3.4-rc7","v3.4-rc6","v3.4-rc3","v3.4-rc5","v3.3","v3.3-rc6","v3.3-rc3","v3.3-rc7","v3.3-rc2","v3.3-rc5","v3.2","v3.3-rc4","v3.3-rc1","v3.2-rc4","v3.2-rc7","v3.2-rc6","v3.2-rc5","v3.2-rc3","v3.1","v3.2-rc2","v3.2-rc1","v3.1-rc1","v3.1-rc9","v3.1-rc8","v3.1-rc10","v3.1-rc7","v3.1-rc3","v3.1-rc2","v3.1-rc4","v3.1-rc5","v3.0","v3.1-rc6","v3.0-rc7","v3.0-rc4","v3.0-rc6","v3.0-rc5","v3.0-rc3","v3.0-rc1","v2.6.39","v3.0-rc2","v2.6.38","v2.6.39-rc2","v2.6.39-rc7","v2.6.39-rc5","v2.6.39-rc1","v2.6.38-rc7","v2.6.39-rc6","v2.6.39-rc4","v2.6.39-rc3","v2.6.37","v2.6.38-rc1","v2.6.38-rc8","v2.6.38-rc2","v2.6.38-rc6","v2.6.38-rc5","v2.6.38-rc4","v2.6.38-rc3","v2.6.37-rc4","v2.6.37-rc2","v2.6.36","v2.6.37-rc5","v2.6.37-rc8","v2.6.37-rc7","v2.6.37-rc6","v2.6.37-rc1","v2.6.37-rc3","v2.6.36-rc6","v2.6.35-rc4","v2.6.36-rc8","v2.6.35","v2.6.36-rc7","v2.6.36-rc3","v2.6.36-rc5","v2.6.36-rc4","v2.6.36-rc2","v2.6.36-rc1","v2.6.35-rc5","v2.6.35-rc6","v2.6.34","v2.6.35-rc3","v2.6.35-rc1","v2.6.35-rc2","v2.6.34-rc7","v2.6.34-rc6","v2.6.34-rc5","v2.6.34-rc4","v2.6.34-rc3","v2.6.34-rc2","v2.6.34-rc1","v2.6.33","v2.6.33-rc6","v2.6.33-rc8","v2.6.33-rc4","v2.6.33-rc5","v2.6.33-rc3","v2.6.33-rc7","v2.6.33-rc2","v2.6.32","v2.6.33-rc1","v2.6.32-rc8","v2.6.32-rc7","v2.6.32-rc6","v2.6.31","v2.6.32-rc5","v2.6.32-rc4","v2.6.32-rc2","v2.6.32-rc1","v2.6.32-rc3","v2.6.31-rc9","v2.6.31-rc1","v2.6.31-rc7","v2.6.31-rc8","v2.6.31-rc6","v2.6.30-rc6","v2.6.30","v2.6.31-rc4","v2.6.31-rc5","v2.6.31-rc3","v2.6.31-rc2","v2.6.30-rc7","v2.6.30-rc8","v2.6.30-rc5","v2.6.30-rc3","v2.6.30-rc4","v2.6.30-rc1","v2.6.30-rc2","v2.6.29","v2.6.29-rc8","v2.6.29-rc7","v2.6.29-rc5","v2.6.29-rc1","v2.6.29-rc6","v2.6.29-rc4","v2.6.29-rc3","v2.6.29-rc2","v2.6.28","v2.6.28-rc7","v2.6.28-rc9","v2.6.28-rc8","v2.6.28-rc6","v2.6.28-rc5","v2.6.28-rc4","v2.6.28-rc2","v2.6.28-rc3","v2.6.28-rc1","v2.6.27","v2.6.27-rc7","v2.6.27-rc9","v2.6.27-rc8","v2.6.27-rc5","v2.6.27-rc6","v2.6.27-rc4","v2.6.27-rc1","v2.6.27-rc3","v2.6.27-rc2","v2.6.26","v2.6.26-rc9","v2.6.26-rc8","v2.6.26-rc3","v2.6.26-rc7","v2.6.26-rc6","v2.6.26-rc5","v2.6.26-rc4","v2.6.26-rc2","v2.6.26-rc1","v2.6.25","v2.6.25-rc7","v2.6.25-rc9","v2.6.25-rc8","v2.6.25-rc6","v2.6.25-rc5","v2.6.25-rc3","v2.6.25-rc4","v2.6.24","v2.6.25-rc2","v2.6.25-rc1","v2.6.24-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