CVE-2022-49592

In the Linux kernel, the following vulnerability has been resolved:

net: stmmac: fix dma queue left shift overflow issue

When queue number is > 4, left shift overflows due to 32 bits integer variable. Mask calculation is wrong for MTLRXQDMA_MAP1.

If CONFIGUBSAN is enabled, kernel dumps below warning: [ 10.363842] ================================================================== [ 10.363882] UBSAN: shift-out-of-bounds in /build/linux-intel-iotg-5.15-8e6Tf4/ linux-intel-iotg-5.15-5.15.0/drivers/net/ethernet/stmicro/stmmac/dwmac4core.c:224:12 [ 10.363929] shift exponent 40 is too large for 32-bit type 'unsigned int' [ 10.363953] CPU: 1 PID: 599 Comm: NetworkManager Not tainted 5.15.0-1003-intel-iotg [ 10.363956] Hardware name: ADLINK Technology Inc. LEC-EL/LEC-EL, BIOS 0.15.11 12/22/2021 [ 10.363958] Call Trace: [ 10.363960] <TASK> [ 10.363963] dumpstacklvl+0x4a/0x5f [ 10.363971] dumpstack+0x10/0x12 [ 10.363974] ubsanepilogue+0x9/0x45 [ 10.363976] _ubsanhandleshiftoutofbounds.cold+0x61/0x10e [ 10.363979] ? wakeupklogd+0x4a/0x50 [ 10.363983] ? vprintkemit+0x8f/0x240 [ 10.363986] dwmac4mapmtldma.cold+0x42/0x91 [stmmac] [ 10.364001] stmmacmtlconfiguration+0x1ce/0x7a0 [stmmac] [ 10.364009] ? dwmac410dmainitchannel+0x70/0x70 [stmmac] [ 10.364020] stmmachwsetup.cold+0xf/0xb14 [stmmac] [ 10.364030] ? pagepoolallocpages+0x4d/0x70 [ 10.364034] ? stmmaccleartxdescriptors+0x6e/0xe0 [stmmac] [ 10.364042] stmmacopen+0x39e/0x920 [stmmac] [ 10.364050] _devopen+0xf0/0x1a0 [ 10.364054] _devchangeflags+0x188/0x1f0 [ 10.364057] devchangeflags+0x26/0x60 [ 10.364059] dosetlink+0x908/0xc40 [ 10.364062] ? dosetlink+0xb10/0xc40 [ 10.364064] ? _nlavalidateparse+0x4c/0x1a0 [ 10.364068] _rtnlnewlink+0x597/0xa10 [ 10.364072] ? _nlareserve+0x41/0x50 [ 10.364074] ? _kmallocnodetrackcaller+0x1d0/0x4d0 [ 10.364079] ? pskbexpandhead+0x75/0x310 [ 10.364082] ? nlareserve64bit+0x21/0x40 [ 10.364086] ? skbfreehead+0x65/0x80 [ 10.364089] ? securitysockrcvskb+0x2c/0x50 [ 10.364094] ? _condresched+0x19/0x30 [ 10.364097] ? kmemcachealloctrace+0x15a/0x420 [ 10.364100] rtnl_newlink+0x49/0x70

This change fixes MTLRXQDMA_MAP1 mask issue and channel/queue mapping warning.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216195