CVE-2026-46049None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Add fallback to default RSR for S/PDIF spdif_passthru_playback_get_resources() uses atc->pll_rate as the RSR for the MSR calculation loop. However, pll_ra…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
In the Linux kernel, the following vulnerability has been resolved:
ALSA: ctxfi: Add fallback to default RSR for S/PDIF
spdif_passthru_playback_get_resources() uses atc->pll_rate as the RSR for the MSR calculation loop. However, pll_rate is only updated in atc_pll_init() and not in hw_pll_init(), so it remains 0 after the card init.
When spdif_passthru_playback_setup() skips atc_pll_init() for 32000 Hz, (rsr * desc.msr) always becomes 0, causing the loop to spin indefinitely.
Add fallback to use atc->rsr when atc->pll_rate is 0. This reflects the hardware state, since hw_card_init() already configures the PLL to the default RSR.
Linux >= 8cc72361481f00253f1e468ade5795427386d593 < d0b53842211f73a10ea174100a213f7fa14b9f33Linux >= 8cc72361481f00253f1e468ade5795427386d593 < 615b7a5e5d8be68d52f262579906f7e015ba4606Linux >= 8cc72361481f00253f1e468ade5795427386d593 < dfc00979ff00d9dfdfa1df32144a272ee2728102Linux >= 8cc72361481f00253f1e468ade5795427386d593 < 25ded535ee261161bcf19dafd525c542e606559dLinux >= 8cc72361481f00253f1e468ade5795427386d593 < 30f9494c6f2b53a78822cfb653ffbb1d092d44c8Linux >= 8cc72361481f00253f1e468ade5795427386d593 < 09496158f6ebba8830593f8972035c02f97124c1Linux >= 8cc72361481f00253f1e468ade5795427386d593 < 95b1ee8442cabbde83b2848e7c6100df90f3a00dLinux >= 8cc72361481f00253f1e468ade5795427386d593 < 7d61662197ecdc458e33e475b6ada7f6da61d364Linux 2.6.31Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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