{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"665b4c6648bf2b91f69b33817f4321cf4c3cafe9","status":"affected","version":"673feb9d76ab3eddde7acfd94b206e321cfc90b9","versionType":"git"},{"lessThan":"b5bfc61f541d3f092b13dedcfe000d86eb8e133c","status":"affected","version":"673feb9d76ab3eddde7acfd94b206e321cfc90b9","versionType":"git"},{"lessThan":"f715f31559b82e3f75ce047fa476de63d8107584","status":"affected","version":"673feb9d76ab3eddde7acfd94b206e321cfc90b9","versionType":"git"},{"lessThan":"6a14828caddad0d989495a72af678adf60992704","status":"affected","version":"673feb9d76ab3eddde7acfd94b206e321cfc90b9","versionType":"git"},{"lessThan":"1bea037a1abb23a6729bef36a2265a4565f5ea77","status":"affected","version":"673feb9d76ab3eddde7acfd94b206e321cfc90b9","versionType":"git"},{"lessThan":"6e50eb4b1807017f6c2d5089064256ce2de8aef1","status":"affected","version":"673feb9d76ab3eddde7acfd94b206e321cfc90b9","versionType":"git"},{"lessThan":"19ba6c8af9382c4c05dc6a0a79af3013b9a35cd0","status":"affected","version":"673feb9d76ab3eddde7acfd94b206e321cfc90b9","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"4.13"},{"lessThan":"4.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"4.14.*","status":"unaffected","version":"4.14.300","versionType":"semver"},{"lessThanOrEqual":"4.19.*","status":"unaffected","version":"4.19.267","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.225","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.156","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.80","versionType":"semver"},{"lessThanOrEqual":"6.0.*","status":"unaffected","version":"6.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.1","versionType":"original_commit_for_fix"}]}],"cveId":"CVE-2022-49802","cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix null pointer dereference in ftrace_add_mod()\n\nThe @ftrace_mod is allocated by kzalloc(), so both the members {prev,next}\nof @ftrace_mode->list are NULL, it's not a valid state to call list_del().\nIf kstrdup() for @ftrace_mod->{func|module} fails, it goes to @out_free\ntag and calls free_ftrace_mod() to destroy @ftrace_mod, then list_del()\nwill write prev->next and next->prev, where null pointer dereference\nhappens.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nOops: 0002 [#1] PREEMPT SMP NOPTI\nCall Trace:\n <TASK>\n ftrace_mod_callback+0x20d/0x220\n ? do_filp_open+0xd9/0x140\n ftrace_process_regex.isra.51+0xbf/0x130\n ftrace_regex_write.isra.52.part.53+0x6e/0x90\n vfs_write+0xee/0x3a0\n ? __audit_filter_op+0xb1/0x100\n ? auditd_test_task+0x38/0x50\n ksys_write+0xa5/0xe0\n do_syscall_64+0x3a/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\nKernel panic - not syncing: Fatal exception\n\nSo call INIT_LIST_HEAD() to initialize the list member to fix this issue.","epss":{"date":"2026-11-05","percentile":0.12931,"score":0.00222},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793908190009,"publishedAt":1746108570308,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/665b4c6648bf2b91f69b33817f4321cf4c3cafe9"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/b5bfc61f541d3f092b13dedcfe000d86eb8e133c"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/f715f31559b82e3f75ce047fa476de63d8107584"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/6a14828caddad0d989495a72af678adf60992704"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/1bea037a1abb23a6729bef36a2265a4565f5ea77"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/6e50eb4b1807017f6c2d5089064256ce2de8aef1"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/19ba6c8af9382c4c05dc6a0a79af3013b9a35cd0"}],"remediation":[],"revision":"5f3ab325fd2bd62c20be4924e53b28d71e938ebaf27e1017f5b4717220a89376","sources":[{"modifiedAt":1793908190009,"name":"CNA: Linux","retrievedAt":1793909438245,"url":"https://www.cve.org/CVERecord?id=CVE-2022-49802"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793909453677,"url":"https://api.first.org/data/v1/epss?cve=CVE-2022-49802"}],"ssvc":{"assessedAt":1793908134647,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"ftrace: Fix null pointer dereference in ftrace_add_mod()","updatedAt":1793909453677}