CVE-2025-21824

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

gpu: host1x: Fix a use of uninitialized mutex

commit c8347f915e67 ("gpu: host1x: Fix boot regression for Tegra") caused a use of uninitialized mutex leading to below warning when CONFIGDEBUGMUTEXES and CONFIGDEBUGLOCK_ALLOC are enabled.

[ 41.662843] ------------[ cut here ]------------ [ 41.663012] DEBUGLOCKSWARNON(lock->magic != lock) [ 41.663035] WARNING: CPU: 4 PID: 794 at kernel/locking/mutex.c:587 _mutexlock+0x670/0x878 [ 41.663458] Modules linked in: rtw888822c(+) bluetooth(+) rtw88pci rtw88core mac80211 aquantia libarc4 crcitut cfg80211 tegra194cpufreq dwmactegra(+) armdsupmu stmmacplatform stmmac pcsxpcs rfkill at24 host1x(+) tegrabpmpthermal ramoops reedsolomon fuse loop nfnetlink xfs mmcblock rpmbcore ucsiccg ina3221 crct10difce xhcitegra ghashce lm90 sha2ce sha256arm64 sha1ce sdhcitegra pwmfan sdhcipltfm sdhci gpiokeys rtctegra cqhci mmccore phytegraxusb i2ctegra tegra186gpcdma i2ctegrabpmp spitegra114 dmmirror dmregionhash dmlog dmmod [ 41.665078] CPU: 4 UID: 0 PID: 794 Comm: (udev-worker) Not tainted 6.11.0-29.311538613708.el10.aarch64+debug #1 [ 41.665838] Hardware name: NVIDIA NVIDIA Jetson AGX Orin Developer Kit/Jetson, BIOS 36.3.0-gcid-35594366 02/26/2024 [ 41.672555] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 41.679636] pc : _mutexlock+0x670/0x878 [ 41.683834] lr : _mutexlock+0x670/0x878 [ 41.688035] sp : ffff800084b77090 [ 41.691446] x29: ffff800084b77160 x28: ffffdd4bebf7b000 x27: ffffdd4be96b1000 [ 41.698799] x26: 1fffe0002308361c x25: 1ffff0001096ee18 x24: 0000000000000000 [ 41.706149] x23: 0000000000000000 x22: 0000000000000002 x21: ffffdd4be6e3c7a0 [ 41.713500] x20: ffff800084b770f0 x19: ffff00011841b1e8 x18: 0000000000000000 [ 41.720675] x17: 0000000000000000 x16: 0000000000000000 x15: 0720072007200720 [ 41.728023] x14: 0000000000000000 x13: 0000000000000001 x12: ffff6001a96eaab3 [ 41.735375] x11: 1fffe001a96eaab2 x10: ffff6001a96eaab2 x9 : ffffdd4be4838bbc [ 41.742723] x8 : 00009ffe5691554e x7 : ffff000d4b755593 x6 : 0000000000000001 [ 41.749985] x5 : ffff000d4b755590 x4 : 1fffe0001d88f001 x3 : dfff800000000000 [ 41.756988] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000ec478000 [ 41.764251] Call trace: [ 41.766695] _mutexlock+0x670/0x878 [ 41.770373] mutexlocknested+0x2c/0x40 [ 41.774134] host1xintrstart+0x54/0xf8 [host1x] [ 41.778863] host1xruntimeresume+0x150/0x228 [host1x] [ 41.783935] pmgenericruntimeresume+0x84/0xc8 [ 41.788485] _rpmcallback+0xa0/0x478 [ 41.792422] rpmcallback+0x15c/0x1a8 [ 41.795922] rpmresume+0x698/0xc08 [ 41.799597] _pmruntimeresume+0xa8/0x140 [ 41.803621] host1xprobe+0x810/0xbc0 [host1x] [ 41.807909] platformprobe+0xcc/0x1a8 [ 41.811845] reallyprobe+0x188/0x800 [ 41.815347] _driverprobedevice+0x164/0x360 [ 41.819810] driverprobedevice+0x64/0x1a8 [ 41.823834] _driverattach+0x180/0x490 [ 41.827773] busforeachdev+0x104/0x1a0 [ 41.831797] driverattach+0x44/0x68 [ 41.835296] busadddriver+0x23c/0x4e8 [ 41.839235] driverregister+0x15c/0x3a8 [ 41.843170] _platformregisterdrivers+0xa4/0x208 [ 41.848159] tegrahost1xinit+0x4c/0xff8 [host1x] [ 41.853147] dooneinitcall+0xd4/0x380 [ 41.856997] doinitmodule+0x1dc/0x698 [ 41.860758] loadmodule+0xc70/0x1300 [ 41.864435] _dosysinitmodule+0x1a8/0x1d0 [ 41.868721] _arm64sysinitmodule+0x74/0xb0 [ 41.873183] invokesyscall.constprop.0+0xdc/0x1e8 [ 41.877997] doel0svc+0x154/0x1d0 [ 41.881671] el0svc+0x54/0x140 [ 41.884820] el0t64synchandler+0x120/0x130 [ 41.889285] el0t64sync+0x1a4/0x1a8 [ 41.892960] irq event stamp: 69737 [ 41.896370] hardirqs last enabled at (69737): [<ffffdd4be6d7768c>] rawspinunlockirqrestore+0x44/0xe8 [ 41.905739] hardirqs last disabled at (69736): ---truncated---