{"id":"DEBIAN-CVE-2024-40960","details":"In the Linux kernel, the following vulnerability has been resolved:  ipv6: prevent possible NULL dereference in rt6_probe()  syzbot caught a NULL dereference in rt6_probe() [1]  Bail out if  __in6_dev_get() returns NULL.  [1] Oops: general protection fault, probably for non-canonical address 0xdffffc00000000cb: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000658-0x000000000000065f] CPU: 1 PID: 22444 Comm: syz-executor.0 Not tainted 6.10.0-rc2-syzkaller-00383-gb8481381d4e2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024  RIP: 0010:rt6_probe net/ipv6/route.c:656 [inline]  RIP: 0010:find_match+0x8c4/0xf50 net/ipv6/route.c:758 Code: 14 fd f7 48 8b 85 38 ff ff ff 48 c7 45 b0 00 00 00 00 48 8d b8 5c 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 \u003c0f\u003e b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 19 RSP: 0018:ffffc900034af070 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90004521000 RDX: 00000000000000cb RSI: ffffffff8990d0cd RDI: 000000000000065c RBP: ffffc900034af150 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000002 R12: 000000000000000a R13: 1ffff92000695e18 R14: ffff8880244a1d20 R15: 0000000000000000 FS:  00007f4844a5a6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31b27000 CR3: 000000002d42c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace:  \u003cTASK\u003e   rt6_nh_find_match+0xfa/0x1a0 net/ipv6/route.c:784   nexthop_for_each_fib6_nh+0x26d/0x4a0 net/ipv4/nexthop.c:1496   __find_rr_leaf+0x6e7/0xe00 net/ipv6/route.c:825   find_rr_leaf net/ipv6/route.c:853 [inline]   rt6_select net/ipv6/route.c:897 [inline]   fib6_table_lookup+0x57e/0xa30 net/ipv6/route.c:2195   ip6_pol_route+0x1cd/0x1150 net/ipv6/route.c:2231   pol_lookup_func include/net/ip6_fib.h:616 [inline]   fib6_rule_lookup+0x386/0x720 net/ipv6/fib6_rules.c:121   ip6_route_output_flags_noref net/ipv6/route.c:2639 [inline]   ip6_route_output_flags+0x1d0/0x640 net/ipv6/route.c:2651   ip6_dst_lookup_tail.constprop.0+0x961/0x1760 net/ipv6/ip6_output.c:1147   ip6_dst_lookup_flow+0x99/0x1d0 net/ipv6/ip6_output.c:1250   rawv6_sendmsg+0xdab/0x4340 net/ipv6/raw.c:898   inet_sendmsg+0x119/0x140 net/ipv4/af_inet.c:853   sock_sendmsg_nosec net/socket.c:730 [inline]   __sock_sendmsg net/socket.c:745 [inline]   sock_write_iter+0x4b8/0x5c0 net/socket.c:1160   new_sync_write fs/read_write.c:497 [inline]   vfs_write+0x6b6/0x1140 fs/read_write.c:590   ksys_write+0x1f8/0x260 fs/read_write.c:643   do_syscall_x64 arch/x86/entry/common.c:52 [inline]   do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83  entry_SYSCALL_64_after_hwframe+0x77/0x7f","modified":"2026-09-15T09:03:09.598098560Z","published":"2024-07-12T13:15:18.040Z","upstream":["CVE-2024-40960"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-40960"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.99-1"}]}],"versions":["6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-40960.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.9.7-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-40960.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.9.7-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-40960.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}