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CVE-2024-36915— nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 nfc:llcp 模块存在漏洞。

CVSS 7.1 · High EPSS 0.25% · P16

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 26fd76cab2e61cedc5c25f7151fb31b57ddc53c7< 298609e7069ce74542a2253a39ccc9717f1d877a affected
26fd76cab2e61cedc5c25f7151fb31b57ddc53c7< 0f106133203021533cb753e80d75896f4ad222f8 affected
26fd76cab2e61cedc5c25f7151fb31b57ddc53c7< 29dc0ea979d433dd3c26abc8fa971550bdc05107 affected
26fd76cab2e61cedc5c25f7151fb31b57ddc53c7< 7a87441c9651ba37842f4809224aca13a554a26f affected
3.10 affected
< 3.10 unaffected
6.1.119≤ 6.1.* unaffected
6.6.47≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-36915

Vulnerability Information
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Vulnerability Title
nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies
Source: CVE Program / CVE List V5
Vulnerability Description
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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 nfc:llcp 模块存在漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 26fd76cab2e61cedc5c25f7151fb31b57ddc53c7 ~ 298609e7069ce74542a2253a39ccc9717f1d877a -
Linux Linux 3.10 -

II. Public POCs for CVE-2024-36915

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III. Intelligence Information for CVE-2024-36915

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Patches & Fixes for CVE-2024-36915 (1)

Other References for CVE-2024-36915 (3)

Same Patch Batch · Linux · 2024-05-30 · 93 CVEs total

CVE-2024-36958 9.8 CRITICAL NFSD: Fix nfsd4_encode_fattr4() crasher
CVE-2024-36886 9.8 CRITICAL tipc: fix UAF in error path
CVE-2024-36911 9.8 CRITICAL hv_netvsc: Don't free decrypted memory
CVE-2024-36912 9.6 CRITICAL Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl
CVE-2024-36913 9.3 CRITICAL Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails
CVE-2024-36909 9.3 CRITICAL Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted
CVE-2024-36922 8.8 HIGH wifi: iwlwifi: read txq->read_ptr under lock
CVE-2024-36921 8.8 HIGH wifi: iwlwifi: mvm: guard against invalid STA ID on removal
CVE-2024-36910 8.4 HIGH uio_hv_generic: Don't free decrypted memory
CVE-2024-36032 8.1 HIGH Bluetooth: qca: fix info leak when fetching fw build id
CVE-2024-36933 7.8 HIGH nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment().
CVE-2024-36904 7.8 HIGH tcp: Use refcount_inc_not_zero() in tcp_twsk_unique().
CVE-2024-36914 7.8 HIGH drm/amd/display: Skip on writeback when it's not applicable
CVE-2024-36918 7.8 HIGH bpf: Check bloom filter map value size
CVE-2024-36018 7.8 HIGH nouveau/uvmm: fix addr/range calcs for remap operations
CVE-2024-36894 7.8 HIGH usb: gadget: f_fs: Fix race between aio_cancel() and AIO request complete
CVE-2024-36890 7.8 HIGH mm/slab: make __free(kfree) accept error pointers
CVE-2024-36940 7.8 HIGH pinctrl: core: delete incorrect free in pinctrl_enable()
CVE-2024-36928 7.8 HIGH s390/qeth: Fix kernel panic after setting hsuid
CVE-2024-36884 7.8 HIGH iommu/arm-smmu: Use the correct type in nvidia_smmu_context_fault()

Showing top 20 of 93 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-36915

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