CVE-2021-47330— tty: serial: 8250: serial_cs: Fix a memory leak in error handling path
Affected Version Matrix 20
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9< b5a2799cd62ed30c81b22c23028d9ee374e2138c | affected |
15b99ac1729503db9e6dc642a50b9b6cb3bf51f9< 331f5923fce4f45b8170ccf06c529e8eb28f37bc | affected | ||
15b99ac1729503db9e6dc642a50b9b6cb3bf51f9< 34f4590f5ec9859ea9136249f528173d150bd584 | affected | ||
15b99ac1729503db9e6dc642a50b9b6cb3bf51f9< cddee5c287e26f6b2ba5c0ffdfc3a846f2f10461 | affected | ||
15b99ac1729503db9e6dc642a50b9b6cb3bf51f9< ee16bed959862a6de2913f71a04cb563d7237b67 | affected | ||
15b99ac1729503db9e6dc642a50b9b6cb3bf51f9< 7a80f71601af015856a0aeb1e3c294037ac3dd32 | affected | ||
15b99ac1729503db9e6dc642a50b9b6cb3bf51f9< c39cf4df19acf0133fa284a8cd83fad42cd13cc2 | affected | ||
15b99ac1729503db9e6dc642a50b9b6cb3bf51f9< b2ef1f5de40342de44fc5355321595f91774dab5 | affected | ||
| … +12 more rows | |||
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I. Basic Information for CVE-2021-47330
Vulnerability Information
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Vulnerability Title
tty: serial: 8250: serial_cs: Fix a memory leak in error handling path
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tty: serial: 8250: serial_cs: Fix a memory leak in error handling path In the probe function, if the final 'serial_config()' fails, 'info' is leaking. Add a resource handling path to free this memory.
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。攻击者利用该漏洞导致内存泄漏。
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-2021-47330
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2024-05-21 · 361 CVEs total
| CVE-2021-47432 | lib/generic-radix-tree.c: Don't overflow in peek() | |
| CVE-2023-52760 | gfs2: Fix slab-use-after-free in gfs2_qd_dealloc | |
| CVE-2023-52757 | smb: client: fix potential deadlock when releasing mids | |
| CVE-2023-52755 | ksmbd: fix slab out of bounds write in smb_inherit_dacl() | |
| CVE-2023-52754 | media: imon: fix access to invalid resource for the second interface | |
| CVE-2023-52753 | drm/amd/display: Avoid NULL dereference of timing generator | |
| CVE-2023-52752 | smb: client: fix use-after-free bug in cifs_debug_data_proc_show() | |
| CVE-2023-52751 | smb: client: fix use-after-free in smb2_query_info_compound() | |
| CVE-2023-52750 | arm64: Restrict CPU_BIG_ENDIAN to GNU as or LLVM IAS 15.x or newer | |
| CVE-2023-52749 | spi: Fix null dereference on suspend | |
| CVE-2023-52748 | f2fs: avoid format-overflow warning | |
| CVE-2022-48710 | drm/radeon: fix a possible null pointer dereference | |
| CVE-2023-52742 | net: USB: Fix wrong-direction WARNING in plusb.c | |
| CVE-2023-52738 | drm/amdgpu/fence: Fix oops due to non-matching drm_sched init/fini | |
| CVE-2023-52740 | powerpc/64s/interrupt: Fix interrupt exit race with security mitigation switch | |
| CVE-2023-52739 | Fix page corruption caused by racy check in __free_pages | |
| CVE-2023-52741 | cifs: Fix use-after-free in rdata->read_into_pages() | |
| CVE-2023-52743 | ice: Do not use WQ_MEM_RECLAIM flag for workqueue | |
| CVE-2023-52746 | xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr() | |
| CVE-2023-52747 | IB/hfi1: Restore allocated resources on failed copyout |
Showing top 20 of 361 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43492
lib/crypto: mpi: Fix integer underflow in mpi_read_raw_from_ - CVE-2026-43493
crypto: pcrypt - Fix handling of MAY_BACKLOG requests - CVE-2026-43491
net: qrtr: ns: Limit the maximum server registration per nod - CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length
Same vendor: Linux
- CVE-2026-43492
lib/crypto: mpi: Fix integer underflow in mpi_read_raw_from_ - CVE-2026-43493
crypto: pcrypt - Fix handling of MAY_BACKLOG requests - CVE-2026-43491
net: qrtr: ns: Limit the maximum server registration per nod - CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length
V. Comments for CVE-2021-47330
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