CVE-2026-46157— ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger
Possible ATT&CK Techniques 1AI
T1059.007 · JavaScriptAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 49f9d048845be874df7997e4b1ce662de450c4b6 | affected |
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< ac3e9b55b7da6f0be51720bd330a0edc1a8b61f1 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 6b01c1bc9a4748ab37548a700a8aaff910e298e6 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 901ac0ff15edf9503162e2cf6579bd11a30f1ed4 | affected | ||
2.6.12 | affected | ||
< 2.6.12 | unaffected | ||
6.12.88≤ 6.12.* | unaffected | ||
6.18.30≤ 6.18.* | unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2026-46157
Vulnerability Information
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Vulnerability Title
ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger Currently the runtime.oss.trigger field may be accessed concurrently without protection, which may lead to the data race. And, in this case, it may lead to more severe problem because it's a bit field; as writing the data, it may overwrite other bit fields as well, which confuses the operation completely, as spotted by fuzzing. Fix it by covering runtime.oss.trigger bit fled also with the existing params_lock mutex in both snd_pcm_oss_get_trigger() and snd_pcm_oss_poll().
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 pcm oss中runtime.oss.trigger字段存在数据竞争，可能导致操作混乱。
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-2026-46157
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-46157 (4)
Same Patch Batch · Linux · 2026-05-28 · 138 CVEs total
| CVE-2026-46135 | 9.8 CRITICAL | nvmet-tcp: fix race between ICReq handling and queue teardown |
| CVE-2026-46137 | 9.8 CRITICAL | mptcp: pm: ADD_ADDR rtx: fix potential data-race |
| CVE-2026-46115 | 9.8 CRITICAL | block: add pgmap check to biovec_phys_mergeable |
| CVE-2026-46195 | 9.8 CRITICAL | smb: client: validate dacloffset before building DACL pointers |
| CVE-2026-46155 | 9.1 CRITICAL | smb/client: fix out-of-bounds read in smb2_compound_op() |
| CVE-2026-46185 | 9.1 CRITICAL | smb/client: fix out-of-bounds read in symlink_data() |
| CVE-2026-46119 | 9.1 CRITICAL | libceph: Fix slab-out-of-bounds access in auth message processing |
| CVE-2026-46238 | 8.8 HIGH | batman-adv: stop caching unowned originator pointers in BAT IV |
| CVE-2026-46152 | 8.8 HIGH | wifi: mac80211: drop stray 'static' from fast-RX rx_result |
| CVE-2026-46212 | 8.8 HIGH | batman-adv: bla: prevent use-after-free when deleting claims |
| CVE-2026-46166 | 8.8 HIGH | wifi: mac80211: use safe list iteration in radar detect work |
| CVE-2026-46174 | 8.8 HIGH | x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache |
| CVE-2026-46113 | 8.8 HIGH | KVM: x86: Fix shadow paging use-after-free due to unexpected GFN |
| CVE-2026-46125 | 8.8 HIGH | wifi: mac80211: remove station if connection prep fails |
| CVE-2026-46198 | 8.8 HIGH | batman-adv: fix integer overflow on buff_pos |
| CVE-2026-46138 | 8.1 HIGH | Bluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt |
| CVE-2026-46232 | 8.1 HIGH | HID: playstation: Clamp num_touch_reports |
| CVE-2026-46210 | 7.8 HIGH | media: iris: fix use-after-free of fmt_src during MBPF check |
| CVE-2026-46215 | 7.8 HIGH | drm: Set old handle to NULL before prime swap in change_handle |
| CVE-2026-46145 | 7.8 HIGH | RDMA/mana: Validate rx_hash_key_len |
Showing top 20 of 138 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46242
eventpoll: fix ep_remove struct eventpoll / struct file UAF - CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf - CVE-2026-46238
batman-adv: stop caching unowned originator pointers in BAT
Same vendor: Linux
- CVE-2026-46242
eventpoll: fix ep_remove struct eventpoll / struct file UAF - CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf - CVE-2026-46238
batman-adv: stop caching unowned originator pointers in BAT
V. Comments for CVE-2026-46157
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