CVE-2023-53679— wifi: mt7601u: fix an integer underflow
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，该漏洞源于整数下溢导致空指针取消引用。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 14
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | c869f77d6abb5d5f9f2f1a661d5c53862a9cad34< 67e4519afba215199b6dfa39ce5d7ea673ee4138 |
affected |
c869f77d6abb5d5f9f2f1a661d5c53862a9cad34< 47dc1f425af57b71111d7b01ebd24e04e8d967ef |
affected | ||
c869f77d6abb5d5f9f2f1a661d5c53862a9cad34< 1a1f43059afae5cc9409e0c3bc63bfc09bc8facb |
affected | ||
c869f77d6abb5d5f9f2f1a661d5c53862a9cad34< 61d0163e2be7a439cf6f82e9ad7de563ecf41e7a |
affected | ||
c869f77d6abb5d5f9f2f1a661d5c53862a9cad34< d0db59e2f718d1e2f1d2a2d8092168fdd2f3add0 |
affected | ||
c869f77d6abb5d5f9f2f1a661d5c53862a9cad34< 803f3176c5df3b5582c27ea690f204abb60b19b9 |
affected | ||
4.2 |
affected | ||
< 4.2 |
unaffected | ||
| … +6 more rows | |||
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I. Basic Information for CVE-2023-53679
Vulnerability Information
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Vulnerability Title
wifi: mt7601u: fix an integer underflow
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt7601u: fix an integer underflow
Fix an integer underflow that leads to a null pointer dereference in
'mt7601u_rx_skb_from_seg()'. The variable 'dma_len' in the URB packet
could be manipulated, which could trigger an integer underflow of
'seg_len' in 'mt7601u_rx_process_seg()'. This underflow subsequently
causes the 'bad_frame' checks in 'mt7601u_rx_skb_from_seg()' to be
bypassed, eventually leading to a dereference of the pointer 'p', which
is a null pointer.
Ensure that 'dma_len' is greater than 'min_seg_len'.
Found by a modified version of syzkaller.
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G W O 5.14.0+
#139
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
RIP: 0010:skb_add_rx_frag+0x143/0x370
Code: e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 86 01 00 00 4c 8d 7d 08 44
89 68 08 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02
00 0f 85 cd 01 00 00 48 8b 45 08 a8 01 0f 85 3d 01 00 00
RSP: 0018:ffffc900000cfc90 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888115520dc0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffff8881118430c0 RDI: ffff8881118430f8
RBP: 0000000000000000 R08: 0000000000000e09 R09: 0000000000000010
R10: ffff888111843017 R11: ffffed1022308602 R12: 0000000000000000
R13: 0000000000000e09 R14: 0000000000000010 R15: 0000000000000008
FS: 0000000000000000(0000) GS:ffff88811a800000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000004035af40 CR3: 00000001157f2000 CR4: 0000000000750ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
mt7601u_rx_tasklet+0xc73/0x1270
? mt7601u_submit_rx_buf.isra.0+0x510/0x510
? tasklet_action_common.isra.0+0x79/0x2f0
tasklet_action_common.isra.0+0x206/0x2f0
__do_softirq+0x1b5/0x880
? tasklet_unlock+0x30/0x30
run_ksoftirqd+0x26/0x50
smpboot_thread_fn+0x34f/0x7d0
? smpboot_register_percpu_thread+0x370/0x370
kthread+0x3a1/0x480
? set_kthread_struct+0x120/0x120
ret_from_fork+0x1f/0x30
Modules linked in: 88XXau(O) 88x2bu(O)
---[ end trace 57f34f93b4da0f9b ]---
RIP: 0010:skb_add_rx_frag+0x143/0x370
Code: e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 86 01 00 00 4c 8d 7d 08 44
89 68 08 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02
00 0f 85 cd 01 00 00 48 8b 45 08 a8 01 0f 85 3d 01 00 00
RSP: 0018:ffffc900000cfc90 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888115520dc0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffff8881118430c0 RDI: ffff8881118430f8
RBP: 0000000000000000 R08: 0000000000000e09 R09: 0000000000000010
R10: ffff888111843017 R11: ffffed1022308602 R12: 0000000000000000
R13: 0000000000000e09 R14: 0000000000000010 R15: 0000000000000008
FS: 0000000000000000(0000) GS:ffff88811a800000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000004035af40 CR3: 00000001157f2000 CR4: 0000000000750ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/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，该漏洞源于整数下溢导致空指针取消引用。
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
II. Public POCs for CVE-2023-53679
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2023-53679 (1)
Same Patch Batch · Linux · 2025-10-07 · 118 CVEs total
| CVE-2023-53629 | 9.8 CRITICAL | fs: dlm: fix use after free in midcomms commit |
| CVE-2023-53630 | 8.8 HIGH | iommufd: Fix unpinning of pages when an access is present |
| CVE-2023-53676 | 8.8 HIGH | scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() |
| CVE-2023-53675 | 8.8 HIGH | scsi: ses: Fix possible desc_ptr out-of-bounds accesses |
| CVE-2023-53673 | 8.8 HIGH | Bluetooth: hci_event: call disconnect callback before deleting conn |
| CVE-2023-53635 | 8.2 HIGH | netfilter: conntrack: fix wrong ct->timeout value |
| CVE-2023-53659 | 7.8 HIGH | iavf: Fix out-of-bounds when setting channels on remove |
| CVE-2023-53619 | 7.8 HIGH | netfilter: conntrack: Avoid nf_ct_helper_hash uses after free |
| CVE-2023-53660 | 7.8 HIGH | bpf, cpumap: Handle skb as well when clean up ptr_ring |
| CVE-2023-53643 | 7.8 HIGH | nvme-tcp: don't access released socket during error recovery |
| CVE-2023-53645 | 7.8 HIGH | bpf: Make bpf_refcount_acquire fallible for non-owning refs |
| CVE-2023-53646 | 7.8 HIGH | drm/i915/perf: add sentinel to xehp_oa_b_counters |
| CVE-2023-53669 | 7.8 HIGH | tcp: fix skb_copy_ubufs() vs BIG TCP |
| CVE-2023-53626 | 7.8 HIGH | ext4: fix possible double unlock when moving a directory |
| CVE-2022-50528 | 7.8 HIGH | drm/amdkfd: Fix memory leakage |
| CVE-2023-53627 | 7.8 HIGH | scsi: hisi_sas: Grab sas_dev lock when traversing the members of sas_dev.list |
| CVE-2022-50555 | 7.8 HIGH | tipc: fix a null-ptr-deref in tipc_topsrv_accept |
| CVE-2022-50518 | 7.8 HIGH | parisc: Fix locking in pdc_iodc_print() firmware call |
| CVE-2023-53683 | 7.8 HIGH | fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode() |
| CVE-2022-50517 | 7.8 HIGH | mm/huge_memory: do not clobber swp_entry_t during THP split |
Showing top 20 of 118 CVEs. View all on vendor page → →
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Same vendor: Linux
-
CVE-2023-7356
Bluetooth: ISO: Copy BASE if service data matches EIR_BAA_SE -
CVE-2026-98869
bpf: Infer zext_dst based on static register liveness analys -
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V. Comments for CVE-2023-53679
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