CVE-2026-46049
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-05-27
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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.
Affected Software (10)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 8cc72361481f00253f1e468ade5795427386d593 < d0b53842211f73a10ea174100a213f7fa14b9f33 |
| Linux | Linux | 8cc72361481f00253f1e468ade5795427386d593 < 615b7a5e5d8be68d52f262579906f7e015ba4606 |
| Linux | Linux | 8cc72361481f00253f1e468ade5795427386d593 < dfc00979ff00d9dfdfa1df32144a272ee2728102 |
| Linux | Linux | 8cc72361481f00253f1e468ade5795427386d593 < 25ded535ee261161bcf19dafd525c542e606559d |
| Linux | Linux | 8cc72361481f00253f1e468ade5795427386d593 < 30f9494c6f2b53a78822cfb653ffbb1d092d44c8 |
| Linux | Linux | 8cc72361481f00253f1e468ade5795427386d593 < 09496158f6ebba8830593f8972035c02f97124c1 |
| Linux | Linux | 8cc72361481f00253f1e468ade5795427386d593 < 95b1ee8442cabbde83b2848e7c6100df90f3a00d |
| Linux | Linux | 8cc72361481f00253f1e468ade5795427386d593 < 7d61662197ecdc458e33e475b6ada7f6da61d364 |
| Linux | Linux | 2.6.31 |
| linux | linux_kernel | 2.6.31 – 5.10.258 |