CVE-2025-38078— ALSA: pcm: Fix race of buffer access at PCM OSS layer
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< c0e05a76fc727929524ef24a19c302e6dd40233f | affected |
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 8170d8ec4efd0be352c14cb61f374e30fb0c2a25 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 10217da9644ae75cea7330f902c35fc5ba78bbbf | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< f3e14d706ec18faf19f5a6e75060e140fea05d4a | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 74d90875f3d43f3eff0e9861c4701418795d3455 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< bf85e49aaf3a3c5775ea87369ea5f159c2148db4 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< afa56c960fcb4db37f2e3399f28e9402e4e1f470 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 93a81ca0657758b607c3f4ba889ae806be9beb73 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2025-38078
Vulnerability Information
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Vulnerability Title
ALSA: pcm: Fix race of buffer access at PCM OSS layer
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix race of buffer access at PCM OSS layer The PCM OSS layer tries to clear the buffer with the silence data at initialization (or reconfiguration) of a stream with the explicit call of snd_pcm_format_set_silence() with runtime->dma_area. But this may lead to a UAF because the accessed runtime->dma_area might be freed concurrently, as it's performed outside the PCM ops. For avoiding it, move the code into the PCM core and perform it inside the buffer access lock, so that it won't be changed during the operation.
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 OSS层的缓冲区访问竞争条件，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-2025-38078
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-06-18 · 362 CVEs total
| CVE-2022-50104 | powerpc/xive: Fix refcount leak in xive_get_max_prio | |
| CVE-2022-50116 | tty: n_gsm: fix deadlock and link starvation in outgoing data path | |
| CVE-2022-50114 | net: 9p: fix refcount leak in p9_read_work() error handling | |
| CVE-2022-50113 | ASoc: audio-graph-card2: Fix refcount leak bug in __graph_get_type() | |
| CVE-2022-50112 | rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge | |
| CVE-2022-50111 | ASoC: mt6359: Fix refcount leak bug | |
| CVE-2022-50110 | watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource | |
| CVE-2022-50109 | video: fbdev: amba-clcd: Fix refcount leak bugs | |
| CVE-2022-50108 | mfd: max77620: Fix refcount leak in max77620_initialise_fps | |
| CVE-2022-50106 | powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address | |
| CVE-2022-50107 | cifs: Fix memory leak when using fscache | |
| CVE-2022-50105 | powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader | |
| CVE-2022-50099 | video: fbdev: arkfb: Check the size of screen before memset_io() | |
| CVE-2022-50095 | posix-cpu-timers: Cleanup CPU timers before freeing them during exec | |
| CVE-2022-50094 | spmi: trace: fix stack-out-of-bound access in SPMI tracing functions | |
| CVE-2022-50096 | x86/kprobes: Update kcb status flag after singlestepping | |
| CVE-2022-50097 | video: fbdev: s3fb: Check the size of screen before memset_io() | |
| CVE-2022-50098 | scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts | |
| CVE-2022-50101 | video: fbdev: vt8623fb: Check the size of screen before memset_io() | |
| CVE-2022-50103 | sched, cpuset: Fix dl_cpu_busy() panic due to empty cs->cpus_allowed |
Showing top 20 of 362 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- 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 - CVE-2026-43499
rtmutex: Use waiter::task instead of current in remove_waite - CVE-2026-43497
fbdev: udlfb: add vm_ops to dlfb_ops_mmap to prevent use-aft
Same vendor: Linux
- 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 - CVE-2026-43499
rtmutex: Use waiter::task instead of current in remove_waite - CVE-2026-43497
fbdev: udlfb: add vm_ops to dlfb_ops_mmap to prevent use-aft
V. Comments for CVE-2025-38078
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