CVE-2024-56531— ALSA: caiaq: Use snd_card_free_when_closed() at disconnection
Affected Version Matrix 20
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 523f1dce37434a9a6623bf46e7893e2b4b10ac3c< 3993edf44d3df7b6e8c753eac6ac8783473fcbab | affected |
523f1dce37434a9a6623bf46e7893e2b4b10ac3c< ebad462eec93b0f701dfe4de98990e7355283801 | affected | ||
523f1dce37434a9a6623bf46e7893e2b4b10ac3c< 4dd821dcbfcecf7af6a08370b0b217cde2818acf | affected | ||
523f1dce37434a9a6623bf46e7893e2b4b10ac3c< cadf1d8e9ddcd74584ec961aeac14ac549b261d8 | affected | ||
523f1dce37434a9a6623bf46e7893e2b4b10ac3c< 237f3faf0177bdde728fa3106d730d806436aa4d | affected | ||
523f1dce37434a9a6623bf46e7893e2b4b10ac3c< 4507a8b9b30344c5ddd8219945f446d47e966a6d | affected | ||
523f1dce37434a9a6623bf46e7893e2b4b10ac3c< dd0de8cb708951cebf727aa045e8242ba651bb52 | affected | ||
523f1dce37434a9a6623bf46e7893e2b4b10ac3c< a3f9314752dbb6f6aa1f0f2b4c58243bda800738 | affected | ||
| … +12 more rows | |||
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I. Basic Information for CVE-2024-56531
Vulnerability Information
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Vulnerability Title
ALSA: caiaq: Use snd_card_free_when_closed() at disconnection
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: Use snd_card_free_when_closed() at disconnection The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses snd_card_free() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup. An easy workaround is to replace snd_card_free() with snd_card_free_when_closed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close. This patch also splits the code to the disconnect and the free phases; the former is called immediately at the USB disconnect callback while the latter is called from the card destructor.
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ALSA:caiaq模块中USB断开时未使用snd_card_free_when_closed，可能导致软锁。
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-2024-56531
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2024-56531 (9)
Same Patch Batch · Linux · 2024-12-27 · 221 CVEs total
| CVE-2024-56607 | wifi: ath12k: fix atomic calls in ath12k_mac_op_set_bitrate_mask() | |
| CVE-2024-56594 | drm/amdgpu: set the right AMDGPU sg segment limitation | |
| CVE-2024-56595 | jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree | |
| CVE-2024-56596 | jfs: fix array-index-out-of-bounds in jfs_readdir | |
| CVE-2024-56597 | jfs: fix shift-out-of-bounds in dbSplit | |
| CVE-2024-56598 | jfs: array-index-out-of-bounds fix in dtReadFirst | |
| CVE-2024-56599 | wifi: ath10k: avoid NULL pointer error during sdio remove | |
| CVE-2024-56601 | net: inet: do not leave a dangling sk pointer in inet_create() | |
| CVE-2024-56600 | net: inet6: do not leave a dangling sk pointer in inet6_create() | |
| CVE-2024-56602 | net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() | |
| CVE-2024-56603 | net: af_can: do not leave a dangling sk pointer in can_create() | |
| CVE-2024-56604 | Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc() | |
| CVE-2024-56605 | Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() | |
| CVE-2024-56606 | af_packet: avoid erroring out after sock_init_data() in packet_create() | |
| CVE-2024-56618 | pmdomain: imx: gpcv2: Adjust delay after power up handshake | |
| CVE-2024-56615 | bpf: fix OOB devmap writes when deleting elements | |
| CVE-2024-56616 | drm/dp_mst: Fix MST sideband message body length check | |
| CVE-2024-56617 | cacheinfo: Allocate memory during CPU hotplug if not done from the primary CPU | |
| CVE-2024-56614 | xsk: fix OOB map writes when deleting elements | |
| CVE-2024-56619 | nilfs2: fix potential out-of-bounds memory access in nilfs_find_entry() |
Showing top 20 of 221 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46300
net: skbuff: propagate shared-frag marker through frag-trans - CVE-2026-43503
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects
Same vendor: Linux
- CVE-2026-46300
net: skbuff: propagate shared-frag marker through frag-trans - CVE-2026-43503
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects
V. Comments for CVE-2024-56531
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