CVE-2022-50386— Bluetooth: L2CAP: Fix user-after-free
Affected Version Matrix 20
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 3df91ea20e744344100b10ae69a17211fcf5b207< 11e40d6c0823f699d8ad501e48d1c3ae4be386cd | affected |
3df91ea20e744344100b10ae69a17211fcf5b207< 843fc4e386dd84b806a7f07fb062d8c3a44e5364 | affected | ||
3df91ea20e744344100b10ae69a17211fcf5b207< d91fc2836562f299f34e361e089e9fe154da4f73 | affected | ||
3df91ea20e744344100b10ae69a17211fcf5b207< 7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45 | affected | ||
3df91ea20e744344100b10ae69a17211fcf5b207< 0c108cf3ad386e0084277093b55a351c49e0be27 | affected | ||
3df91ea20e744344100b10ae69a17211fcf5b207< d1e894f950ad48897d1a7cb05909ea29d8c3810e | affected | ||
3df91ea20e744344100b10ae69a17211fcf5b207< 6ffde6e03085874ae22263ff4cef4869f797e84f | affected | ||
3df91ea20e744344100b10ae69a17211fcf5b207< 15fc21695eb606bdc5d483b92118ee42610a952d | affected | ||
| … +12 more rows | |||
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I. Basic Information for CVE-2022-50386
Vulnerability Information
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Vulnerability Title
Bluetooth: L2CAP: Fix user-after-free
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2cap_chan_hold_unless_zero() after calling __l2cap_get_chan_blah() to prevent the following trace: Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref *kref) Bluetooth: chan 0000000023c4974d Bluetooth: parent 00000000ae861c08 ================================================================== BUG: KASAN: use-after-free in __mutex_waiter_is_first kernel/locking/mutex.c:191 [inline] BUG: KASAN: use-after-free in __mutex_lock_common kernel/locking/mutex.c:671 [inline] BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400 kernel/locking/mutex.c:729 Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389
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，该漏洞源于释放后重用，可能导致内存损坏。
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-2022-50386
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-09-18 · 121 CVEs total
| CVE-2022-50405 | net/tunnel: wait until all sk_user_data reader finish before releasing the sock | |
| CVE-2022-50418 | wifi: ath11k: mhi: fix potential memory leak in ath11k_mhi_register() | |
| CVE-2022-50417 | drm/panfrost: Fix GEM handle creation ref-counting | |
| CVE-2022-50416 | irqchip/wpcm450: Fix memory leak in wpcm450_aic_of_init() | |
| CVE-2022-50415 | parisc: led: Fix potential null-ptr-deref in start_task() | |
| CVE-2022-50414 | scsi: fcoe: Fix transport not deattached when fcoe_if_init() fails | |
| CVE-2022-50413 | wifi: mac80211: fix use-after-free | |
| CVE-2022-50412 | drm: bridge: adv7511: unregister cec i2c device after cec adapter | |
| CVE-2022-50411 | ACPICA: Fix error code path in acpi_ds_call_control_method() | |
| CVE-2022-50410 | NFSD: Protect against send buffer overflow in NFSv2 READ | |
| CVE-2022-50409 | net: If sock is dead don't access sock's sk_wq in sk_stream_wait_memory | |
| CVE-2022-50407 | crypto: hisilicon/qm - increase the memory of local variables | |
| CVE-2022-50408 | wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() | |
| CVE-2022-50406 | iomap: iomap: fix memory corruption when recording errors during writeback | |
| CVE-2022-50404 | fbdev: fbcon: release buffer when fbcon_do_set_font() failed | |
| CVE-2023-53410 | USB: ULPI: fix memory leak with using debugfs_lookup() | |
| CVE-2023-53413 | USB: isp116x: fix memory leak with using debugfs_lookup() | |
| CVE-2023-53412 | USB: gadget: bcm63xx_udc: fix memory leak with using debugfs_lookup() | |
| CVE-2023-53411 | PM: EM: fix memory leak with using debugfs_lookup() | |
| CVE-2023-53408 | trace/blktrace: fix memory leak with using debugfs_lookup() |
Showing top 20 of 121 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
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