Description
In the Linux kernel, the following vulnerability has been resolved: net: ipa: fix event ring index not programmed for IPA v5.0+ For IPA v5.0+, the event ring index field moved from CH_C_CNTXT_0 to CH_C_CNTXT_1. The v5.0 register definition intended to define this field in the CH_C_CNTXT_1 fmask array but used the old identifier of ERINDEX instead of CH_ERINDEX. Without a valid event ring, GSI channels could never signal transfer completions. This caused gsi_channel_trans_quiesce() to block forever in wait_for_completion(). At least for IPA v5.2 this resolves an issue seen where runtime suspend, system suspend, and remoteproc stop all hanged forever. It also meant the IPA data path was completely non functional.
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
faf0678ec8a0aa9039d8b188d012206abd67dd5c to < ae8343a19ccb051d519dbb3a9082ddea9f0551d3affectedfaf0678ec8a0aa9039d8b188d012206abd67dd5c to < 2bf18b643c4656413f7cfd5615af60a6b4e261daaffectedfaf0678ec8a0aa9039d8b188d012206abd67dd5c to < 2d2dc166d55148cfcf8ae67b415f8d6d110e6fcaaffectedfaf0678ec8a0aa9039d8b188d012206abd67dd5c to < 34c988bb04cbdf093d2134e179433da49ffcd044affectedfaf0678ec8a0aa9039d8b188d012206abd67dd5c to < 56007972c0b1e783ca714d6f1f4d6e66e531d21faffected
Linux Linux
Default version status: affected
6.4affected0 to < 6.4unaffected6.6.136 to ≤ 6.6.*unaffected6.12.83 to ≤ 6.12.*unaffected6.18.24 to ≤ 6.18.*unaffected6.19.14 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/ae8343a19ccb051d519dbb3a9082ddea9f0551d3 ↗
- https://git.kernel.org/stable/c/2bf18b643c4656413f7cfd5615af60a6b4e261da ↗
- https://git.kernel.org/stable/c/2d2dc166d55148cfcf8ae67b415f8d6d110e6fca ↗
- https://git.kernel.org/stable/c/34c988bb04cbdf093d2134e179433da49ffcd044 ↗
- https://git.kernel.org/stable/c/56007972c0b1e783ca714d6f1f4d6e66e531d21f ↗