{"id":"DEBIAN-CVE-2023-53789","details":"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:   \u003cTASK\u003e   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   \u003c/TASK\u003e  [joro: Edit commit message]","modified":"2026-09-15T08:47:29.274415277Z","published":"2025-12-09T01:16:50.317Z","upstream":["CVE-2023-53789"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-53789"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53789.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53789.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53789.json"}}],"schema_version":"1.9.0"}