CVE-2025-37796— wifi: at76c50x: fix use after free access in at76_disconnect
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 29e20aa6c6aff35c81d4da2e2cd516dadb569061< c731cdfddcf1be1590d5ba8c9b508f98e3a2b3d6 | affected |
29e20aa6c6aff35c81d4da2e2cd516dadb569061< 6e4ab3e574c2a335b40fa1f70d1c54fcb58ab33f | affected | ||
29e20aa6c6aff35c81d4da2e2cd516dadb569061< 3c619aec1f538333b56746d2f796aab1bca5c9a5 | affected | ||
29e20aa6c6aff35c81d4da2e2cd516dadb569061< 5e7df74745700f059dc117a620e566964a2e8f2c | affected | ||
29e20aa6c6aff35c81d4da2e2cd516dadb569061< 7ca513631fa6ad3011b8b9197cdde0f351103704 | affected | ||
29e20aa6c6aff35c81d4da2e2cd516dadb569061< a9682bfef2cf3802515a902e964d774e137be1b9 | affected | ||
29e20aa6c6aff35c81d4da2e2cd516dadb569061< 152721cbae42713ecfbca6847e0f102ee6b19546 | affected | ||
29e20aa6c6aff35c81d4da2e2cd516dadb569061< 27c7e63b3cb1a20bb78ed4a36c561ea4579fd7da | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2025-37796
Vulnerability Information
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Vulnerability Title
wifi: at76c50x: fix use after free access in at76_disconnect
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: at76c50x: fix use after free access in at76_disconnect The memory pointed to by priv is freed at the end of at76_delete_device function (using ieee80211_free_hw). But the code then accesses the udev field of the freed object to put the USB device. This may also lead to a memory leak of the usb device. Fix this by using udev from interface.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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at76_disconnect中存在释放后重用。
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-2025-37796
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total
| CVE-2022-49854 | mctp: Fix an error handling path in mctp_init() | |
| CVE-2022-49837 | bpf: Fix memory leaks in __check_func_call | |
| CVE-2022-49838 | sctp: clear out_curr if all frag chunks of current msg are pruned | |
| CVE-2022-49840 | bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb() | |
| CVE-2022-49839 | scsi: scsi_transport_sas: Fix error handling in sas_phy_add() | |
| CVE-2022-49841 | serial: imx: Add missing .thaw_noirq hook | |
| CVE-2022-49842 | ASoC: core: Fix use-after-free in snd_soc_exit() | |
| CVE-2022-49844 | can: dev: fix skb drop check | |
| CVE-2022-49845 | can: j1939: j1939_send_one(): fix missing CAN header initialization | |
| CVE-2022-49846 | udf: Fix a slab-out-of-bounds write bug in udf_find_entry() | |
| CVE-2022-49847 | net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload | |
| CVE-2022-49849 | btrfs: fix match incorrectly in dev_args_match_device | |
| CVE-2022-49848 | phy: qcom-qmp-combo: fix NULL-deref on runtime resume | |
| CVE-2022-49850 | nilfs2: fix deadlock in nilfs_count_free_blocks() | |
| CVE-2022-49851 | riscv: fix reserved memory setup | |
| CVE-2022-49852 | riscv: process: fix kernel info leakage | |
| CVE-2022-49862 | tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header | |
| CVE-2022-49864 | drm/amdkfd: Fix NULL pointer dereference in svm_migrate_to_ram() | |
| CVE-2022-49865 | ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network | |
| CVE-2022-49863 | can: af_can: fix NULL pointer dereference in can_rx_register() |
Showing top 20 of 245 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
Same vendor: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
V. Comments for CVE-2025-37796
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