CVE-2023-53789

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

iommu/amd: Improve page fault error reporting

If IOMMU domain for device group is not setup properly then we may hit IOMMU page fault. Current page fault handler assumes that domain is always setup and it will hit NULL pointer derefence (see below sample log).

Lets check whether domain is setup or not and log appropriate message.

Sample log:

amdgpu 0000:00:01.0: amdgpu: SE 1, SH per SE 1, CU per SH 8, active_cu_number 6 BUG: kernel NULL pointer dereference, address: 0000000000000058 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 2 PID: 56 Comm: irq/24-AMD-Vi Not tainted 6.2.0-rc2+ #89 Hardware name: xxx RIP: 0010:report_iommu_fault+0x11/0x90 [...] Call Trace: <TASK> amd_iommu_int_thread+0x60c/0x760 ? __pfx_irq_thread_fn+0x10/0x10 irq_thread_fn+0x1f/0x60 irq_thread+0xea/0x1a0 ? preempt_count_add+0x6a/0xa0 ? __pfx_irq_thread_dtor+0x10/0x10 ? __pfx_irq_thread+0x10/0x10 kthread+0xe9/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2c/0x50 </TASK>

[joro: Edit commit message]

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

iommu/amd: Improve page fault error reporting

If IOMMU domain for device group is not setup properly then we may hit IOMMU page fault. Current page fault handler assumes that domain is always setup and it will hit NULL pointer derefence (see below sample log).

Lets check whether domain is setup or not and log appropriate message.

Sample log:

amdgpu 0000:00:01.0: amdgpu: SE 1, SH per SE 1, CU per SH 8, active_cu_number 6 BUG: kernel NULL pointer dereference, address: 0000000000000058 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 2 PID: 56 Comm: irq/24-AMD-Vi Not tainted 6.2.0-rc2+ #89 Hardware name: xxx RIP: 0010:report_iommu_fault+0x11/0x90 [...] Call Trace: <TASK> amd_iommu_int_thread+0x60c/0x760 ? __pfx_irq_thread_fn+0x10/0x10 irq_thread_fn+0x1f/0x60 irq_thread+0xea/0x1a0 ? preempt_count_add+0x6a/0xa0 ? __pfx_irq_thread_dtor+0x10/0x10 ? __pfx_irq_thread+0x10/0x10 kthread+0xe9/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2c/0x50 </TASK>

[joro: Edit commit message]

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

iommu/amd: Improve page fault error reporting

If IOMMU domain for device group is not setup properly then we may hit IOMMU page fault. Current page fault handler assumes that domain is always setup and it will hit NULL pointer derefence (see below sample log).

Lets check whether domain is setup or not and log appropriate message.

Sample log:

amdgpu 0000:00:01.0: amdgpu: SE 1, SH per SE 1, CU per SH 8, active_cu_number 6 BUG: kernel NULL pointer dereference, address: 0000000000000058 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 2 PID: 56 Comm: irq/24-AMD-Vi Not tainted 6.2.0-rc2+ #89 Hardware name: xxx RIP: 0010:report_iommu_fault+0x11/0x90 [...] Call Trace: <TASK> amd_iommu_int_thread+0x60c/0x760 ? __pfx_irq_thread_fn+0x10/0x10 irq_thread_fn+0x1f/0x60 irq_thread+0xea/0x1a0 ? preempt_count_add+0x6a/0xa0 ? __pfx_irq_thread_dtor+0x10/0x10 ? __pfx_irq_thread+0x10/0x10 kthread+0xe9/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2c/0x50 </TASK>

[joro: Edit commit message]

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

iommu/amd: Improve page fault error reporting

If IOMMU domain for device group is not setup properly then we may hit IOMMU page fault. Current page fault handler assumes that domain is always setup and it will hit NULL pointer derefence (see below sample log).

Lets check whether domain is setup or not and log appropriate message.

Sample log:

amdgpu 0000:00:01.0: amdgpu: SE 1, SH per SE 1, CU per SH 8, active_cu_number 6 BUG: kernel NULL pointer dereference, address: 0000000000000058 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 2 PID: 56 Comm: irq/24-AMD-Vi Not tainted 6.2.0-rc2+ #89 Hardware name: xxx RIP: 0010:report_iommu_fault+0x11/0x90 [...] Call Trace: <TASK> amd_iommu_int_thread+0x60c/0x760 ? __pfx_irq_thread_fn+0x10/0x10 irq_thread_fn+0x1f/0x60 irq_thread+0xea/0x1a0 ? preempt_count_add+0x6a/0xa0 ? __pfx_irq_thread_dtor+0x10/0x10 ? __pfx_irq_thread+0x10/0x10 kthread+0xe9/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2c/0x50 </TASK>

[joro: Edit commit message]

• mm: hugetlb: fix UAF in hugetlb_handle_userfault {CVE-2022-50630}
• drm/amdkfd: fix potential kgd_mem UAFs {CVE-2023-53816}
• net/mlx5e: Fix deadlock in tc route query code {CVE-2023-53591}
• PCI: Fix pci_device_is_present() for VFs by checking PF {CVE-2022-50636}
• wifi: ath11k: fix monitor mode bringup crash {CVE-2022-50627}
• wifi: mac80211_hwsim: drop short frames {CVE-2023-53321}
• scsi: target: iscsi: Fix timeout on deleted connection {CVE-2025-38075}
• amdgpu: validate offset_in_bo of drm_amdgpu_gem_va {CVE-2023-53819}
• dmaengine: ptdma: check for null desc before calling pt_cmd_callback {CVE-2023-53755}
• wifi: mt7601u: fix an integer underflow {CVE-2023-53679}
• Bluetooth: hci_event: call disconnect callback before deleting conn {CVE-2023-53673}
• firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails {CVE-2022-50087}
• tls: wait for pending async decryptions if tls_strp_msg_hold fails {CVE-2025-40176}
• clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns {CVE-2025-38499}
• net: openvswitch: reject negative ifindex {CVE-2023-53843}
• drm/i915: Fix NULL ptr deref by checking new_crtc_state {CVE-2023-53833}
• iommu/amd: Improve page fault error reporting {CVE-2023-53789}
• media: v4l2-mem2mem: add lock to protect parameter num_rdy {CVE-2023-53519}
• Bluetooth: Fix potential use-after-free when clear keys {CVE-2023-53386}
• Bluetooth: L2CAP: Fix use-after-free {CVE-2023-53305}
• ext4: add bounds checking in get_max_inline_xattr_value_size() {CVE-2023-53285}
• ext4: fix use-after-free in ext4_orphan_cleanup {CVE-2022-50673}
• cacheinfo: Fix shared_cpu_map to handle shared caches at different levels {CVE-2023-53254}
• rxrpc: Make it so that a waiting process can be aborted {CVE-2023-53218}
• ip6_vti: fix slab-use-after-free in decode_session6 {CVE-2023-53821}
• vxlan: Fix nexthop hash size {CVE-2023-53192}
• wifi: mac80211: check S1G action frame size {CVE-2023-53257}
• wifi: rtlwifi: Fix global-out-of-bounds bug in _rtl8812ae_phy_set_txpower_limit() {CVE-2022-50279}
• dm flakey: fix a crash with invalid table line {CVE-2023-53786}
• md/raid10: fix null-ptr-deref in raid10_sync_request {CVE-2023-53832}
• md: don't dereference mddev after export_rdev() {CVE-2023-53665}
• md: fix 'delete_mutex' deadlock
• md: fix duplicate filename for rdev {CVE-2023-53665}
• kernfs: Fix UAF in polling when open file is released {CVE-2025-39881}
• mptcp: pm: avoid possible UaF when selecting endp {CVE-2024-44974}
• mptcp: fix UaF in listener shutdown {CVE-2023-53088}
• Bluetooth: MGMT: Fix possible UAFs {CVE-2025-39981}
• Bluetooth: hci_sync: fix set_local_name race condition
• Bluetooth: MGMT: Fix possible deadlocks {CVE-2024-53207}
• tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). {CVE-2025-40186}
• e1000e: fix heap overflow in e1000_set_eeprom {CVE-2025-39898}
• wifi: cfg80211: fix use-after-free in cmp_bss() {CVE-2025-39864}
• nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() {CVE-2025-38724}
• usb: xhci: Apply the link chain quirk on NEC isoc endpoints {CVE-2025-22022}
• xfrm: xfrm_alloc_spi shouldn't use 0 as SPI {CVE-2025-39965}
• xfrm: Duplicate SPI Handling {CVE-2025-39797}
• nfsd: release svc_expkey/svc_export with rcu_work {CVE-2024-53216}
• NFS: Fix a race when updating an existing write {CVE-2025-39697}
• nfs: fold nfs_page_group_lock_subrequests into nfs_lock_and_join_requests
• drm/amd/display: Check dce_hwseq before dereferencing it {CVE-2025-38361}