CVE-2021-47020— soundwire: stream: fix memory leak in stream config error path
Possible ATT&CK Techniques 1AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 14
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 89e590535f32d4bc548bcf266f3b046e50942f6d< 342260fe821047c3d515e3d28085d73fbdce3e80 | affected |
89e590535f32d4bc548bcf266f3b046e50942f6d< 870533403ffa28ff63e173045fc5369365642002 | affected | ||
89e590535f32d4bc548bcf266f3b046e50942f6d< 7c468deae306d0cbbd539408c26cfec04c66159a | affected | ||
89e590535f32d4bc548bcf266f3b046e50942f6d< 2f17ac005b320c85d686088cfd4c2e7017912b88 | affected | ||
89e590535f32d4bc548bcf266f3b046e50942f6d< effd2bd62b416f6629e18e3ce077c60de14cfdea | affected | ||
89e590535f32d4bc548bcf266f3b046e50942f6d< 48f17f96a81763c7c8bf5500460a359b9939359f | affected | ||
4.18 | affected | ||
< 4.18 | unaffected | ||
| … +6 more rows | |||
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I. Basic Information for CVE-2021-47020
Vulnerability Information
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Vulnerability Title
soundwire: stream: fix memory leak in stream config error path
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: soundwire: stream: fix memory leak in stream config error path When stream config is failed, master runtime will release all slave runtime in the slave_rt_list, but slave runtime is not added to the list at this time. This patch frees slave runtime in the config error path to fix the memory leak.
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，该漏洞源于存在内存泄漏问题。
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-2021-47020
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-47020 (6)
Same Patch Batch · Linux · 2024-02-29 · 53 CVEs total
| CVE-2023-52480 | 9.8 CRITICAL | ksmbd: fix race condition between session lookup and expire |
| CVE-2023-52478 | 8.8 HIGH | HID: logitech-hidpp: Fix kernel crash on receiver USB disconnect |
| CVE-2023-52479 | 8.8 HIGH | ksmbd: fix uaf in smb20_oplock_break_ack |
| CVE-2024-26620 | 8.2 HIGH | s390/vfio-ap: always filter entire AP matrix |
| CVE-2021-47068 | 7.8 HIGH | net/nfc: fix use-after-free llcp_sock_bind/connect |
| CVE-2023-52491 | 7.8 HIGH | media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_ |
| CVE-2024-26608 | 7.8 HIGH | ksmbd: fix global oob in ksmbd_nl_policy |
| CVE-2023-52486 | 7.8 HIGH | drm: Don't unref the same fb many times by mistake due to deadlock handling |
| CVE-2024-26610 | 7.8 HIGH | wifi: iwlwifi: fix a memory corruption |
| CVE-2024-26614 | 7.8 HIGH | tcp: make sure init the accept_queue's spinlocks once |
| CVE-2024-26617 | 7.8 HIGH | fs/proc/task_mmu: move mmu notification mechanism inside mm lock |
| CVE-2023-52483 | 7.8 HIGH | mctp: perform route lookups under a RCU read-side lock |
| CVE-2021-47060 | 7.8 HIGH | KVM: Stop looking for coalesced MMIO zones if the bus is destroyed |
| CVE-2021-47061 | 7.8 HIGH | KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU |
| CVE-2024-26611 | 7.5 HIGH | xsk: fix usage of multi-buffer BPF helpers for ZC XDP |
| CVE-2021-47066 | 7.1 HIGH | async_xor: increase src_offs when dropping destination page |
| CVE-2023-52497 | 7.1 HIGH | erofs: fix lz4 inplace decompression |
| CVE-2021-47055 | 7.1 HIGH | mtd: require write permissions for locking and badblock ioctls |
| CVE-2021-47058 | regmap: set debugfs_name to NULL after it is freed | |
| CVE-2023-52477 | usb: hub: Guard against accesses to uninitialized BOS descriptors |
Showing top 20 of 53 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - 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
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - 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
V. Comments for CVE-2021-47020
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