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CVE-2026-46262— ASoC: fsl_xcvr: Revert fix missing lock in fsl_xcvr_mode_put()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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ASoC fsl_xcvr模块在fsl_xcvr_mode_put函数中尝试获取已由上层ALSA核心持有的controls_rwsem写锁，可能导致死锁和挂起任务。

AI Predicted 5.5 Difficulty: Easy EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 21

VendorProduct Version RangeStatus
Linux Linux 612ffe1f4f0499b3011f16d06e354a76dae2e2d1< ae5a70e3e87c28edbaf9939cfef1bcbd9615420f affected
38354c82abe7bcbcd1182a06af89d3cc16d3e2c7< 30ffcad5edb56947dccc26f6816ab7a55b21a711 affected
61e007657bf7740d54ca2aadce0fb5997839818e< 29b2fbe3498da3681a01b34e4a2259f8a1b89448 affected
daaf4fe333e0d48b2037cd2270bf1ff8f70d5068< b0f74f5d24fe3c73ef1369a811891198b54c1e8e affected
cab928242853a832ffa7efda270ecfb9efeebb6e< 9a2a5da002775376498e8814df4a87cd629a3a0c affected
f514248727606b9087bc38a284ff686e0093abf1< 0886dc6326c3cc596799c4340d342898301cf52a affected
f514248727606b9087bc38a284ff686e0093abf1< 9f16d96e1222391a6b996a1b676bec14fb91e3b2 affected
5.15.201< 5.15.202 affected
… +13 more rows
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I. Basic Information for CVE-2026-46262

Vulnerability Information
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Vulnerability Title
ASoC: fsl_xcvr: Revert fix missing lock in fsl_xcvr_mode_put()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: fsl_xcvr: Revert fix missing lock in fsl_xcvr_mode_put() This reverts commit f51424872760 ("ASoC: fsl_xcvr: fix missing lock in fsl_xcvr_mode_put()"). The original patch attempted to acquire the card->controls_rwsem lock in fsl_xcvr_mode_put(). However, this function is called from the upper ALSA core function snd_ctl_elem_write(), which already holds the write lock on controls_rwsem for the whole put operation. So there is no need to simply hold the lock for fsl_xcvr_activate_ctl() again. Acquiring the read lock while holding the write lock in the same thread results in a deadlock and a hung task, as reported by Alexander Stein.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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ASoC fsl_xcvr模块在fsl_xcvr_mode_put函数中尝试获取已由上层ALSA核心持有的controls_rwsem写锁，可能导致死锁和挂起任务。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 612ffe1f4f0499b3011f16d06e354a76dae2e2d1 ~ ae5a70e3e87c28edbaf9939cfef1bcbd9615420f -
Linux Linux 6.19 -

II. Public POCs for CVE-2026-46262

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III. Intelligence Information for CVE-2026-46262

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Patches & Fixes for CVE-2026-46262 (6)

Same Patch Batch · Linux · 2026-06-03 · 32 CVEs total

CVE-2026-46244 9.1 CRITICAL netfilter: nft_inner: Fix IPv6 inner_thoff desync
CVE-2026-46266 9.1 CRITICAL inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP
CVE-2026-46264 8.8 HIGH drm/xe/pf: Fix sysfs initialization
CVE-2026-46273 8.6 HIGH ibmveth: Disable GSO for packets with small MSS
CVE-2026-46251 8.4 HIGH btrfs: fix block_group_tree dirty_list corruption
CVE-2026-46270 8.4 HIGH power: supply: rt9455: Fix use-after-free in power_supply_changed()
CVE-2026-46263 7.8 HIGH drm/amd/display: Fix out-of-bounds stream encoder index v3
CVE-2026-46260 7.8 HIGH ipv6: Fix out-of-bound access in fib6_add_rt2node().
CVE-2026-46259 7.8 HIGH procfs: fix missing RCU protection when reading real_parent in do_task_stat()
CVE-2026-46271 7.8 HIGH wifi: ath12k: do WoW offloads only on primary link
CVE-2026-46253 7.8 HIGH pstore/ram: fix buffer overflow in persistent_ram_save_old()
CVE-2026-46265 7.5 HIGH RDMA/hns: Fix WQ_MEM_RECLAIM warning
CVE-2026-46250 7.3 HIGH MIPS: Work around LLVM bug when gp is used as global register variable
CVE-2025-71314 drm/panthor: Recover from panthor_gpu_flush_caches() failures
CVE-2026-46245 drm/amd/display: Fix dc_link NULL handling in HPD init
CVE-2025-71313 PCI: endpoint: Add missing NULL check for alloc_workqueue()
CVE-2026-46246 power: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler
CVE-2026-46247 clk: qcom: gfx3d: add parent to parent request map
CVE-2026-46248 wifi: ath12k: clear stale link mapping of ahvif->links_map
CVE-2026-46249 octeontx2-af: Fix PF driver crash with kexec kernel booting

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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