In the Linux kernel, the following vulnerability has been resolved: nfc:
llcp: fix nfc_llcp_setsockopt() unsafe copies syzbot reported unsafe calls
to copy_from_sockptr() [1] Use copy_safe_from_sockptr() instead. [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 nfc_llcp_setsockopt+0x6c2/0x850
net/nfc/llcp_sock.c:255 Read of size 4 at addr ffff88801caa1ec3 by task
syz-executor459/5078 CPU: 0 PID: 5078 Comm: syz-executor459 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: <TASK>
__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] nfc_llcp_setsockopt+0x6c2/0x850
net/nfc/llcp_sock.c:255 do_sock_setsockopt+0x3b1/0x720 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+0xfd/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f7fac07fd89 Code: 28
00 00 00 75 05 48 83 c4 28 c3 e8 91 18 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 <48> 3d 01 f0 ff ff 73 01
c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff660eb788
EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX:
0000000000000003 RCX: 00007f7fac07fd89 RDX: 0000000000000000 RSI:
0000000000000118 RDI: 0000000000000004 RBP: 0000000000000000 R08:
0000000000000002 R09: 0000000000000000 R10: 0000000020000a80 R11:
0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14:
0000000000000000 R15: 0000000000000000
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws-6.5 | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure | < any | UNKNOWN |
git.kernel.org/linus/7a87441c9651ba37842f4809224aca13a554a26f (6.9-rc4)
git.kernel.org/stable/c/29dc0ea979d433dd3c26abc8fa971550bdc05107
git.kernel.org/stable/c/7a87441c9651ba37842f4809224aca13a554a26f
launchpad.net/bugs/cve/CVE-2024-36915
nvd.nist.gov/vuln/detail/CVE-2024-36915
security-tracker.debian.org/tracker/CVE-2024-36915
www.cve.org/CVERecord?id=CVE-2024-36915