CVE-2022-50229— ALSA: bcd2000: Fix a UAF bug on the error path of probing
Possible ATT&CK Techniques 1AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 20
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | b47a22290d581277be70e8a597824a4985d39e83< a718eba7e458e2f40531be3c6b6a0028ca7fcace | affected |
b47a22290d581277be70e8a597824a4985d39e83< 4fc41f7ebb7efca282f1740ea934d16f33c1d109 | affected | ||
b47a22290d581277be70e8a597824a4985d39e83< 5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0 | affected | ||
b47a22290d581277be70e8a597824a4985d39e83< 05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24db | affected | ||
b47a22290d581277be70e8a597824a4985d39e83< 348620464a5c127399ac09b266f494f393661952 | affected | ||
b47a22290d581277be70e8a597824a4985d39e83< 64ca7f50ad96c2c65ae390b954925a36eabe04aa | affected | ||
b47a22290d581277be70e8a597824a4985d39e83< 1d6a246cf97c380f2da76591f03019dd9c9599c3 | affected | ||
b47a22290d581277be70e8a597824a4985d39e83< b0d4af0a4763ddc02344789ef2a281c494bc330d | affected | ||
| … +12 more rows | |||
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I. Basic Information for CVE-2022-50229
Vulnerability Information
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Vulnerability Title
ALSA: bcd2000: Fix a UAF bug on the error path of probing
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: bcd2000: Fix a UAF bug on the error path of probing When the driver fails in snd_card_register() at probe time, it will free the 'bcd2k->midi_out_urb' before killing it, which may cause a UAF bug. The following log can reveal it: [ 50.727020] BUG: KASAN: use-after-free in bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] [ 50.727623] Read of size 8 at addr ffff88810fab0e88 by task swapper/4/0 [ 50.729530] Call Trace: [ 50.732899] bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] Fix this by adding usb_kill_urb() before usb_free_urb().
Source: CVE Program / CVE List V5
CVSS Information
N/A
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bcd2000在错误路径上未杀死urb，可能导致释放后重用。
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-2022-50229
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-06-18 · 362 CVEs total
| CVE-2025-38075 | 9.8 CRITICAL | scsi: target: iscsi: Fix timeout on deleted connection |
| CVE-2022-50098 | 8.8 HIGH | scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts |
| CVE-2025-38052 | 8.8 HIGH | net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done |
| CVE-2022-49934 | 8.8 HIGH | wifi: mac80211: Fix UAF in ieee80211_scan_rx() |
| CVE-2022-50164 | 8.8 HIGH | wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue |
| CVE-2025-38016 | 8.8 HIGH | HID: bpf: abort dispatch if device destroyed |
| CVE-2025-38074 | 8.8 HIGH | vhost-scsi: protect vq->log_used with vq->mutex |
| CVE-2022-49974 | 8.8 HIGH | HID: nintendo: fix rumble worker null pointer deref |
| CVE-2022-49968 | 8.0 HIGH | ieee802154/adf7242: defer destroy_workqueue call |
| CVE-2022-49944 | 7.8 HIGH | Revert "usb: typec: ucsi: add a common function ucsi_unregister_connectors()" |
| CVE-2022-49950 | 7.8 HIGH | misc: fastrpc: fix memory corruption on open |
| CVE-2022-49939 | 7.8 HIGH | binder: fix UAF of ref->proc caused by race condition |
| CVE-2022-50028 | 7.8 HIGH | gadgetfs: ep_io - wait until IRQ finishes |
| CVE-2022-49935 | 7.8 HIGH | dma-buf/dma-resv: check if the new fence is really later |
| CVE-2025-38082 | 7.8 HIGH | gpio: virtuser: fix potential out-of-bound write |
| CVE-2025-38080 | 7.8 HIGH | drm/amd/display: Increase block_sequence array size |
| CVE-2025-38079 | 7.8 HIGH | crypto: algif_hash - fix double free in hash_accept |
| CVE-2025-38060 | 7.8 HIGH | bpf: copy_verifier_state() should copy 'loop_entry' field |
| CVE-2022-50101 | 7.8 HIGH | video: fbdev: vt8623fb: Check the size of screen before memset_io() |
| CVE-2025-38062 | 7.8 HIGH | genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie |
Showing top 20 of 362 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
Same vendor: Linux
- CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
V. Comments for CVE-2022-50229
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