Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:bus: fsl-mc: don't assume child devices are all fsl-mc devicesChanges in VFIO caused a pseudo-device to be created as child offsl-mc devices causing a crash [1] when trying to bind a fsl-mcdevice to VFIO. Fix this by checking the device type when enumeratingfsl-mc child devices.[1]Modules linked in:Internal error: Oops: 0000000096000004 [#1] PREEMPT SMPCPU: 6 PID: 1289 Comm: sh Not tainted 6.2.0-rc5-00047-g7c46948a6e9c #2Hardware name: NXP Layerscape LX2160ARDB (DT)pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)pc : mc_send_command+0x24/0x1f0lr : dprc_get_obj_region+0xfc/0x1c0sp : ffff80000a88b900x29: ffff80000a88b900 x28: ffff48a9429e1400 x27: 00000000000002b2x26: ffff48a9429e1718 x25: 0000000000000000 x24: 0000000000000000x23: ffffd59331ba3918 x22: ffffd59331ba3000 x21: 0000000000000000x20: ffff80000a88b9b8 x19: 0000000000000000 x18: 0000000000000001x17: 7270642f636d2d6c x16: 73662e3030303030 x15: ffffffffffffffffx14: ffffd59330f1d668 x13: ffff48a8727dc389 x12: ffff48a8727dc386x11: 0000000000000002 x10: 00008ceaf02f35d4 x9 : 0000000000000012x8 : 0000000000000000 x7 : 0000000000000006 x6 : ffff80000a88bab0x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000a88b9e8x2 : ffff80000a88b9e8 x1 : 0000000000000000 x0 : ffff48a945142b80Call trace: mc_send_command+0x24/0x1f0 dprc_get_obj_region+0xfc/0x1c0 fsl_mc_device_add+0x340/0x590 fsl_mc_obj_device_add+0xd0/0xf8 dprc_scan_objects+0x1c4/0x340 dprc_scan_container+0x38/0x60 vfio_fsl_mc_probe+0x9c/0xf8 fsl_mc_driver_probe+0x24/0x70 really_probe+0xbc/0x2a8 __driver_probe_device+0x78/0xe0 device_driver_attach+0x30/0x68 bind_store+0xa8/0x130 drv_attr_store+0x24/0x38 sysfs_kf_write+0x44/0x60 kernfs_fop_write_iter+0x128/0x1b8 vfs_write+0x334/0x448 ksys_write+0x68/0xf0 __arm64_sys_write+0x1c/0x28 invoke_syscall+0x44/0x108 el0_svc_common.constprop.1+0x94/0xf8 do_el0_svc+0x38/0xb0 el0_svc+0x20/0x50 el0t_64_sync_handler+0x98/0xc0 el0t_64_sync+0x174/0x178Code: aa0103f4 a9025bf5 d5384100 b9400801 (79401260)---[ end trace 0000000000000000 ]---
No PoCs from references.
- https://github.com/fkie-cad/nvd-json-data-feeds