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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-46262

ASoC: fsl_xcvr: Revert fix missing lock in fsl_xcvr_mode_put()

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 612ffe1f4f0499b3011f16d06e354a76dae2e2d1 to < ae5a70e3e87c28edbaf9939cfef1bcbd9615420faffected
  • 38354c82abe7bcbcd1182a06af89d3cc16d3e2c7 to < 30ffcad5edb56947dccc26f6816ab7a55b21a711affected
  • 61e007657bf7740d54ca2aadce0fb5997839818e to < 29b2fbe3498da3681a01b34e4a2259f8a1b89448affected
  • daaf4fe333e0d48b2037cd2270bf1ff8f70d5068 to < b0f74f5d24fe3c73ef1369a811891198b54c1e8eaffected
  • cab928242853a832ffa7efda270ecfb9efeebb6e to < 9a2a5da002775376498e8814df4a87cd629a3a0caffected
  • f514248727606b9087bc38a284ff686e0093abf1 to < 0886dc6326c3cc596799c4340d342898301cf52aaffected
  • f514248727606b9087bc38a284ff686e0093abf1 to < 9f16d96e1222391a6b996a1b676bec14fb91e3b2affected
  • 5.15.201 to < 5.15.202affected
  • 6.1.164 to < 6.1.165affected
  • 6.6.127 to < 6.6.128affected
  • 6.12.74 to < 6.12.75affected
  • 6.18.13 to < 6.18.14affected

Linux Linux

Default version status: affected

  • 6.19affected
  • 0 to < 6.19unaffected
  • 5.15.202 to ≤ 5.15.*unaffected
  • 6.1.165 to ≤ 6.1.*unaffected
  • 6.6.128 to ≤ 6.6.*unaffected
  • 6.12.75 to ≤ 6.12.*unaffected
  • 6.18.14 to ≤ 6.18.*unaffected
  • 6.19.4 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References