{"id":"DEBIAN-CVE-2024-35976","details":"In the Linux kernel, the following vulnerability has been resolved:  xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING  syzbot reported an illegal copy in xsk_setsockopt() [1]  Make sure to validate setsockopt() @optlen parameter.  [1]   BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline]  BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline]  BUG: KASAN: slab-out-of-bounds in xsk_setsockopt+0x909/0xa40 net/xdp/xsk.c:1420 Read of size 4 at addr ffff888028c6cde3 by task syz-executor.0/7549  CPU: 0 PID: 7549 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace:  \u003cTASK\u003e   __dump_stack lib/dump_stack.c:88 [inline]   dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114   print_address_description mm/kasan/report.c:377 [inline]   print_report+0x169/0x550 mm/kasan/report.c:488   kasan_report+0x143/0x180 mm/kasan/report.c:601   copy_from_sockptr_offset include/linux/sockptr.h:49 [inline]   copy_from_sockptr include/linux/sockptr.h:55 [inline]   xsk_setsockopt+0x909/0xa40 net/xdp/xsk.c:1420   do_sock_setsockopt+0x3af/0x720 net/socket.c:2311   __sys_setsockopt+0x1ae/0x250 net/socket.c:2334   __do_sys_setsockopt net/socket.c:2343 [inline]   __se_sys_setsockopt net/socket.c:2340 [inline]   __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340  do_syscall_64+0xfb/0x240  entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fb40587de69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb40665a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fb4059abf80 RCX: 00007fb40587de69 RDX: 0000000000000005 RSI: 000000000000011b RDI: 0000000000000006 RBP: 00007fb4058ca47a R08: 0000000000000002 R09: 0000000000000000 R10: 0000000020001980 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fb4059abf80 R15: 00007fff57ee4d08  \u003c/TASK\u003e  Allocated by task 7549:   kasan_save_stack mm/kasan/common.c:47 [inline]   kasan_save_track+0x3f/0x80 mm/kasan/common.c:68   poison_kmalloc_redzone mm/kasan/common.c:370 [inline]   __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387   kasan_kmalloc include/linux/kasan.h:211 [inline]   __do_kmalloc_node mm/slub.c:3966 [inline]   __kmalloc+0x233/0x4a0 mm/slub.c:3979   kmalloc include/linux/slab.h:632 [inline]   __cgroup_bpf_run_filter_setsockopt+0xd2f/0x1040 kernel/bpf/cgroup.c:1869   do_sock_setsockopt+0x6b4/0x720 net/socket.c:2293   __sys_setsockopt+0x1ae/0x250 net/socket.c:2334   __do_sys_setsockopt net/socket.c:2343 [inline]   __se_sys_setsockopt net/socket.c:2340 [inline]   __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340  do_syscall_64+0xfb/0x240  entry_SYSCALL_64_after_hwframe+0x6d/0x75  The buggy address belongs to the object at ffff888028c6cde0  which belongs to the cache kmalloc-8 of size 8 The buggy address is located 1 bytes to the right of  allocated 2-byte region [ffff888028c6cde0, ffff888028c6cde2)  The buggy address belongs to the physical page: page:ffffea0000a31b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888028c6c9c0 pfn:0x28c6c anon flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000800 ffff888014c41280 0000000000000000 dead000000000001 raw: ffff888028c6c9c0 0000000080800057 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 6648, tgid 6644 (syz-executor.0), ts 133906047828, free_ts 133859922223   set_page_owner include/linux/page_owner.h:31 [inline]   post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1533   prep_new_page mm/page_alloc.c: ---truncated---","modified":"2026-09-15T09:03:08.382420807Z","published":"2024-05-20T10:15:12.273Z","upstream":["CVE-2024-35976"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-35976"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.90-1"}]}],"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~bpo11+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-35976.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.9-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-35976.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.9-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-35976.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:H/I:N/A:H"}]}