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CVE-2026-72446— ALSA: usb-audio: qcom: reject stream disable with no active interface

CVSS 7.8 · High EPSS 0.15% · P5

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinux326bbc348298ab0946c5560defe024a5f6ef28bb< 25a867aa5e67a84333fa6e5c21292c5bcff86b90affected
326bbc348298ab0946c5560defe024a5f6ef28bb< a22356d1f731553e99aa2707dbd38c659bdd28d8affected
326bbc348298ab0946c5560defe024a5f6ef28bb< bdb640be82e645e2828731648f485224d0c2587baffected
6.16affected
< 6.16unaffected
6.18.40≤ 6.18.*unaffected
7.1.5≤ 7.1.*unaffected
7.2≤ *unaffected
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I. Basic Information for CVE-2026-72446

Vulnerability Information
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Vulnerability Title
ALSA: usb-audio: qcom: reject stream disable with no active interface
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: qcom: reject stream disable with no active interface handle_uaudio_stream_req() resolves an interface index with info_idx_from_ifnum(), which returns -EINVAL when no interface matches. The enable branch and the response: cleanup label both guard against a negative index, but the disable branch does not: it forms info = &uadev[pcm_card_num].info[info_idx] and dereferences it. uadev[].info is a pointer allocated only when a stream is first enabled, so a negative info_idx on the disable path is unsafe in two ways: - If the card was never enabled, .info is NULL and &info[-EINVAL] is a wild pointer; reading info->data_ep_pipe faults (kernel oops). - If the card was enabled at least once (.info allocated) and the disable names an interface that does not match, &info[-EINVAL] points before the allocation; info->data_ep_pipe / info->sync_ep_pipe are an out-of-bounds slab read and, when non-zero, an out-of-bounds 4-byte write (both pipe fields are cleared to 0). That is memory corruption, not just a NULL dereference. The request is reachable from unprivileged local userspace over AF_QIPCRTR. Reject a disable request with no resolved interface, matching the guard the enable path already has.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于ALSA usb-audio驱动在禁用流时未检查接口索引解析失败返回的负索引，导致解引用无效指针，可能造成内核崩溃或越界内存读写。
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 326bbc348298ab0946c5560defe024a5f6ef28bb ~ 25a867aa5e67a84333fa6e5c21292c5bcff86b90 -
LinuxLinux 6.16 -

II. Public POCs for CVE-2026-72446

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III. Intelligence Information for CVE-2026-72446

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Patches & Fixes for CVE-2026-72446 (3)

Same Patch Batch · Linux · 2026-08-15 · 845 CVEs total

CVE-2026-7428010.0 CRITICALcrypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-7427910.0 CRITICALcrypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-7242110.0 CRITICALipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-7447510.0 CRITICALvxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-7240810.0 CRITICALgeneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-7240710.0 CRITICALgeneve: validate inner network offset in geneve_gro_complete()
CVE-2026-7430910.0 CRITICALvdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-724939.9 CRITICALnet: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-722109.8 CRITICALntfs: fix off-by-one in mapping pairs decoding bounds checks
CVE-2026-744739.8 CRITICALvxlan: use pskb_network_may_pull() in route_shortcircuit()
CVE-2026-722119.8 CRITICALntfs: grow index root value before reparent header update
CVE-2026-722099.8 CRITICALntfs: validate attribute values on lookup
CVE-2026-724779.8 CRITICALfs/ntfs3: call _ntfs_bad_inode() when failing to rename
CVE-2026-722999.8 CRITICALtipc: restrict socket queue dumps in enqueue tracepoints
CVE-2026-744349.8 CRITICALrxrpc: Don't move a peeked OOB message onto the pending queue
CVE-2026-744339.8 CRITICALrxrpc: Fix UAF in rxgk_issue_challenge()
CVE-2026-724739.8 CRITICALxprtrdma: Decouple req recycling from RPC completion
CVE-2026-724729.8 CRITICALnfs: use nfsi->rwsem to protect traversal of the file lock list
CVE-2026-745459.8 CRITICALrtase: fix double free of multi-frag skb on DMA map failure
CVE-2026-722079.8 CRITICALntfs: not change 0-byte $DATA attribute to non-resident

Showing top 20 of 845 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

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V. Comments for CVE-2026-72446

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