First published: Tue Apr 02 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix lock dependency warning with srcu ====================================================== WARNING: possible circular locking dependency detected 6.5.0-kfd-yangp #2289 Not tainted ------------------------------------------------------ kworker/0:2/996 is trying to acquire lock: (srcu){.+.+}-{0:0}, at: __synchronize_srcu+0x5/0x1a0 but task is already holding lock: ((work_completion)(&svms->deferred_list_work)){+.+.}-{0:0}, at: process_one_work+0x211/0x560 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 ((work_completion)(&svms->deferred_list_work)){+.+.}-{0:0}: __flush_work+0x88/0x4f0 svm_range_list_lock_and_flush_work+0x3d/0x110 [amdgpu] svm_range_set_attr+0xd6/0x14c0 [amdgpu] kfd_ioctl+0x1d1/0x630 [amdgpu] __x64_sys_ioctl+0x88/0xc0 -> #2 (&info->lock#2){+.+.}-{3:3}: __mutex_lock+0x99/0xc70 amdgpu_amdkfd_gpuvm_restore_process_bos+0x54/0x740 [amdgpu] restore_process_helper+0x22/0x80 [amdgpu] restore_process_worker+0x2d/0xa0 [amdgpu] process_one_work+0x29b/0x560 worker_thread+0x3d/0x3d0 -> #1 ((work_completion)(&(&process->restore_work)->work)){+.+.}-{0:0}: __flush_work+0x88/0x4f0 __cancel_work_timer+0x12c/0x1c0 kfd_process_notifier_release_internal+0x37/0x1f0 [amdgpu] __mmu_notifier_release+0xad/0x240 exit_mmap+0x6a/0x3a0 mmput+0x6a/0x120 do_exit+0x322/0xb90 do_group_exit+0x37/0xa0 __x64_sys_exit_group+0x18/0x20 do_syscall_64+0x38/0x80 -> #0 (srcu){.+.+}-{0:0}: __lock_acquire+0x1521/0x2510 lock_sync+0x5f/0x90 __synchronize_srcu+0x4f/0x1a0 __mmu_notifier_release+0x128/0x240 exit_mmap+0x6a/0x3a0 mmput+0x6a/0x120 svm_range_deferred_list_work+0x19f/0x350 [amdgpu] process_one_work+0x29b/0x560 worker_thread+0x3d/0x3d0 other info that might help us debug this: Chain exists of: srcu --> &info->lock#2 --> (work_completion)(&svms->deferred_list_work) Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock((work_completion)(&svms->deferred_list_work)); lock(&info->lock#2); lock((work_completion)(&svms->deferred_list_work)); sync(srcu);
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Software | Affected Version | How to fix |
---|---|---|
ubuntu/linux | <6.5.0-41.41 | 6.5.0-41.41 |
ubuntu/linux | <6.8~ | 6.8~ |
ubuntu/linux-aws | <6.5.0-1021.21 | 6.5.0-1021.21 |
ubuntu/linux-aws | <6.8~ | 6.8~ |
ubuntu/linux-aws-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-aws-5.4 | <6.8~ | 6.8~ |
ubuntu/linux-aws-6.5 | <6.8~ | 6.8~ |
ubuntu/linux-aws-fips | <6.8~ | 6.8~ |
ubuntu/linux-aws-hwe | <6.8~ | 6.8~ |
ubuntu/linux-azure | <6.5.0-1022.23 | 6.5.0-1022.23 |
ubuntu/linux-azure | <6.8~ | 6.8~ |
ubuntu/linux-azure-4.15 | <6.8~ | 6.8~ |
ubuntu/linux-azure-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-azure-5.4 | <6.8~ | 6.8~ |
ubuntu/linux-azure-6.5 | <6.5.0-1022.23~22.04.1 | 6.5.0-1022.23~22.04.1 |
ubuntu/linux-azure-6.5 | <6.8~ | 6.8~ |
ubuntu/linux-azure-fde | <6.8~ | 6.8~ |
ubuntu/linux-azure-fde-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-azure-fips | <6.8~ | 6.8~ |
ubuntu/linux-bluefield | <6.8~ | 6.8~ |
ubuntu/linux-fips | <6.8~ | 6.8~ |
ubuntu/linux-gcp | <6.5.0-1022.24 | 6.5.0-1022.24 |
ubuntu/linux-gcp | <6.8~ | 6.8~ |
ubuntu/linux-gcp-4.15 | <6.8~ | 6.8~ |
ubuntu/linux-gcp-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-gcp-5.4 | <6.8~ | 6.8~ |
ubuntu/linux-gcp-6.5 | <6.5.0-1022.24~22.04.1 | 6.5.0-1022.24~22.04.1 |
ubuntu/linux-gcp-6.5 | <6.8~ | 6.8~ |
ubuntu/linux-gcp-fips | <6.8~ | 6.8~ |
ubuntu/linux-gke | <6.8~ | 6.8~ |
ubuntu/linux-gkeop | <6.8~ | 6.8~ |
ubuntu/linux-gkeop-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-hwe | <6.8~ | 6.8~ |
ubuntu/linux-hwe-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-hwe-5.4 | <6.8~ | 6.8~ |
ubuntu/linux-hwe-6.5 | <6.5.0-41.41~22.04.2 | 6.5.0-41.41~22.04.2 |
ubuntu/linux-hwe-6.5 | <6.8~ | 6.8~ |
ubuntu/linux-ibm | <6.8~ | 6.8~ |
ubuntu/linux-ibm-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-ibm-5.4 | <6.8~ | 6.8~ |
ubuntu/linux-intel | <6.8~ | 6.8~ |
ubuntu/linux-intel-iot-realtime | <6.8~ | 6.8~ |
ubuntu/linux-intel-iotg | <6.8~ | 6.8~ |
ubuntu/linux-intel-iotg-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-iot | <6.8~ | 6.8~ |
ubuntu/linux-kvm | <6.8~ | 6.8~ |
ubuntu/linux-laptop | <6.5.0-1017.20 | 6.5.0-1017.20 |
ubuntu/linux-laptop | <6.8~ | 6.8~ |
ubuntu/linux-lowlatency | <6.5.0-41.41.1 | 6.5.0-41.41.1 |
ubuntu/linux-lowlatency | <6.8~ | 6.8~ |
ubuntu/linux-lowlatency-hwe-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-lowlatency-hwe-6.5 | <6.5.0-41.41.1~22.04.1 | 6.5.0-41.41.1~22.04.1 |
ubuntu/linux-lowlatency-hwe-6.5 | <6.8~ | 6.8~ |
ubuntu/linux-lowlatency-hwe-6.8 | <6.8~ | 6.8~ |
ubuntu/linux-lts-xenial | <6.8~ | 6.8~ |
ubuntu/linux-nvidia | <6.8~ | 6.8~ |
ubuntu/linux-nvidia-6.5 | <6.5.0-1021.22 | 6.5.0-1021.22 |
ubuntu/linux-nvidia-6.5 | <6.8~ | 6.8~ |
ubuntu/linux-nvidia-6.8 | <6.8~ | 6.8~ |
ubuntu/linux-nvidia-lowlatency | <6.8~ | 6.8~ |
ubuntu/linux-oem-6.5 | <6.5.0-1024.25 | 6.5.0-1024.25 |
ubuntu/linux-oem-6.5 | <6.8~ | 6.8~ |
ubuntu/linux-oem-6.8 | <6.8~ | 6.8~ |
ubuntu/linux-oracle | <6.5.0-1024.24 | 6.5.0-1024.24 |
ubuntu/linux-oracle | <6.8~ | 6.8~ |
ubuntu/linux-oracle-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-oracle-5.4 | <6.8~ | 6.8~ |
ubuntu/linux-oracle-6.5 | <6.5.0-1024.24~22.04.1 | 6.5.0-1024.24~22.04.1 |
ubuntu/linux-oracle-6.5 | <6.8~ | 6.8~ |
ubuntu/linux-raspi | <6.5.0-1018.21 | 6.5.0-1018.21 |
ubuntu/linux-raspi | <6.8~ | 6.8~ |
ubuntu/linux-raspi-5.4 | <6.8~ | 6.8~ |
ubuntu/linux-raspi-realtime | <6.8~ | 6.8~ |
ubuntu/linux-realtime | <6.8~ | 6.8~ |
ubuntu/linux-riscv | <6.5.0-40.40.1 | 6.5.0-40.40.1 |
ubuntu/linux-riscv | <6.8~ | 6.8~ |
ubuntu/linux-riscv-5.15 | <6.8~ | 6.8~ |
ubuntu/linux-riscv-6.5 | <6.5.0-40.40.1~22.04.1 | 6.5.0-40.40.1~22.04.1 |
ubuntu/linux-riscv-6.5 | <6.8~ | 6.8~ |
ubuntu/linux-riscv-6.8 | <6.8~ | 6.8~ |
ubuntu/linux-starfive | <6.5.0-1015.16 | 6.5.0-1015.16 |
ubuntu/linux-starfive | <6.8~ | 6.8~ |
ubuntu/linux-starfive-6.5 | <6.5.0-1015.16~22.04.1 | 6.5.0-1015.16~22.04.1 |
ubuntu/linux-starfive-6.5 | <6.8~ | 6.8~ |
ubuntu/linux-xilinx-zynqmp | <6.8~ | 6.8~ |
debian/linux | <=5.10.223-1 | 6.1.106-3 6.1.99-1 6.10.6-1 6.10.7-1 |
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(Appears in the following advisories)