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CVE-2023-54072— ALSA: pcm: Fix potential data race at PCM memory allocation helpers

EPSS 0.05% · P15
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I. Basic Information for CVE-2023-54072

Vulnerability Information
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Vulnerability Title
ALSA: pcm: Fix potential data race at PCM memory allocation helpers
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix potential data race at PCM memory allocation helpers The PCM memory allocation helpers have a sanity check against too many buffer allocations. However, the check is performed without a proper lock and the allocation isn't serialized; this allows user to allocate more memories than predefined max size. Practically seen, this isn't really a big problem, as it's more or less some "soft limit" as a sanity check, and it's not possible to allocate unlimitedly. But it's still better to address this for more consistent behavior. The patch covers the size check in do_alloc_pages() with the card->memory_mutex, and increases the allocated size there for preventing the further overflow. When the actual allocation fails, the size is decreased accordingly.
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PCM内存分配检查未加锁，可能导致分配超过最大限制的内存。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 95b30a4312545f2dde9db12bf6a425f35d5a0d77 ~ 7e1d1456c8db9949459c5a24e8845cfe92430b0f -
LinuxLinux 5.6 -

II. Public POCs for CVE-2023-54072

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III. Intelligence Information for CVE-2023-54072

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Same Patch Batch · Linux · 2025-12-24 · 322 CVEs total

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CVE-2022-50762fs/ntfs3: Avoid UBSAN error on true_sectors_per_clst()
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CVE-2022-50761x86/xen: Fix memory leak in xen_init_lock_cpu()
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CVE-2022-50747hfs: Fix OOB Write in hfs_asc2mac
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CVE-2022-50750drm/panel/panel-sitronix-st7701: Remove panel on DSI attach failure
CVE-2022-50752md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk()
CVE-2022-50753f2fs: fix to do sanity check on summary info
CVE-2022-50754apparmor: fix a memleak in multi_transaction_new()
CVE-2022-50766btrfs: set generation before calling btrfs_clean_tree_block in btrfs_init_new_buffer

Showing top 20 of 322 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-54072

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