{"id":"DEBIAN-CVE-2023-53167","details":"In the Linux kernel, the following vulnerability has been resolved:  tracing: Fix null pointer dereference in tracing_err_log_open()  Fix an issue in function 'tracing_err_log_open'. The function doesn't call 'seq_open' if the file is opened only with write permissions, which results in 'file-\u003eprivate_data' being left as null. If we then use 'lseek' on that opened file, 'seq_lseek' dereferences 'file-\u003eprivate_data' in 'mutex_lock(&m-\u003elock)', resulting in a kernel panic. Writing to this node requires root privileges, therefore this bug has very little security impact.  Tracefs node: /sys/kernel/tracing/error_log  Example Kernel panic:  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000038 Call trace:  mutex_lock+0x30/0x110  seq_lseek+0x34/0xb8  __arm64_sys_lseek+0x6c/0xb8  invoke_syscall+0x58/0x13c  el0_svc_common+0xc4/0x10c  do_el0_svc+0x24/0x98  el0_svc+0x24/0x88  el0t_64_sync_handler+0x84/0xe4  el0t_64_sync+0x1b4/0x1b8 Code: d503201f aa0803e0 aa1f03e1 aa0103e9 (c8e97d02) ---[ end trace 561d1b49c12cf8a5 ]--- Kernel panic - not syncing: Oops: Fatal exception","modified":"2026-09-15T09:02:41.998994367Z","published":"2025-09-15T14:15:38.457Z","upstream":["CVE-2023-53167"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-53167"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.52-1"}]}],"versions":["6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53167.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.4.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53167.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.4.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53167.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}