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.
Product status
8cc72361481f00253f1e468ade5795427386d593 (git) before d0b53842211f73a10ea174100a213f7fa14b9f33
8cc72361481f00253f1e468ade5795427386d593 (git) before 615b7a5e5d8be68d52f262579906f7e015ba4606
8cc72361481f00253f1e468ade5795427386d593 (git) before dfc00979ff00d9dfdfa1df32144a272ee2728102
8cc72361481f00253f1e468ade5795427386d593 (git) before 25ded535ee261161bcf19dafd525c542e606559d
8cc72361481f00253f1e468ade5795427386d593 (git) before 30f9494c6f2b53a78822cfb653ffbb1d092d44c8
8cc72361481f00253f1e468ade5795427386d593 (git) before 09496158f6ebba8830593f8972035c02f97124c1
8cc72361481f00253f1e468ade5795427386d593 (git) before 95b1ee8442cabbde83b2848e7c6100df90f3a00d
8cc72361481f00253f1e468ade5795427386d593 (git) before 7d61662197ecdc458e33e475b6ada7f6da61d364
2.6.31
Any version before 2.6.31
5.10.258 (semver)
5.15.209 (semver)
6.1.175 (semver)
6.6.140 (semver)
6.12.86 (semver)
6.18.27 (semver)
7.0.4 (semver)
7.1-rc1 (original_commit_for_fix)
References
git.kernel.org/...c/d0b53842211f73a10ea174100a213f7fa14b9f33
git.kernel.org/...c/615b7a5e5d8be68d52f262579906f7e015ba4606
git.kernel.org/...c/dfc00979ff00d9dfdfa1df32144a272ee2728102
git.kernel.org/...c/25ded535ee261161bcf19dafd525c542e606559d
git.kernel.org/...c/30f9494c6f2b53a78822cfb653ffbb1d092d44c8
git.kernel.org/...c/09496158f6ebba8830593f8972035c02f97124c1
git.kernel.org/...c/95b1ee8442cabbde83b2848e7c6100df90f3a00d
git.kernel.org/...c/7d61662197ecdc458e33e475b6ada7f6da61d364