{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"bb70fcae4115d24b7e8cee17a6da8b1943f546bb","status":"affected","version":"64836248dda20c8e7427b493f7e06d9bf8f58850","versionType":"git"},{"lessThan":"3a41c0f2a5c3bf72b4c4e9dd4b1025378201e332","status":"affected","version":"64836248dda20c8e7427b493f7e06d9bf8f58850","versionType":"git"},{"lessThan":"fd0efd4f7bfe611a8339ba01bc2ac3c33e79159d","status":"affected","version":"64836248dda20c8e7427b493f7e06d9bf8f58850","versionType":"git"},{"lessThan":"e0d75267f59d7084e0468bd68beeb1bf9c71d7c0","status":"affected","version":"64836248dda20c8e7427b493f7e06d9bf8f58850","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"5.6"},{"lessThan":"5.6","status":"unaffected","version":"0","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-2022-49797","cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: kprobe: Fix potential null-ptr-deref on trace_event_file in kprobe_event_gen_test_exit()\n\nWhen trace_get_event_file() failed, gen_kretprobe_test will be assigned\nas the error code. If module kprobe_event_gen_test is removed now, the\nnull pointer dereference will happen in kprobe_event_gen_test_exit().\nCheck if gen_kprobe_test or gen_kretprobe_test is error code or NULL\nbefore dereference them.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000012\nPGD 0 P4D 0\nOops: 0000 [#1] SMP PTI\nCPU: 3 PID: 2210 Comm: modprobe Not tainted\n6.1.0-rc1-00171-g2159299a3b74-dirty #217\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\nrel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014\nRIP: 0010:kprobe_event_gen_test_exit+0x1c/0xb5 [kprobe_event_gen_test]\nCode: Unable to access opcode bytes at 0xffffffff9ffffff2.\nRSP: 0018:ffffc900015bfeb8 EFLAGS: 00010246\nRAX: ffffffffffffffea RBX: ffffffffa0002080 RCX: 0000000000000000\nRDX: ffffffffa0001054 RSI: ffffffffa0001064 RDI: ffffffffdfc6349c\nRBP: ffffffffa0000000 R08: 0000000000000004 R09: 00000000001e95c0\nR10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000800\nR13: ffffffffa0002420 R14: 0000000000000000 R15: 0000000000000000\nFS:  00007f56b75be540(0000) GS:ffff88813bc00000(0000)\nknlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffffff9ffffff2 CR3: 000000010874a006 CR4: 0000000000330ee0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n <TASK>\n __x64_sys_delete_module+0x206/0x380\n ? lockdep_hardirqs_on_prepare+0xd8/0x190\n ? syscall_enter_from_user_mode+0x1c/0x50\n do_syscall_64+0x3f/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd","epss":{"date":"2026-11-05","percentile":0.10161,"score":0.00202},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793908189309,"publishedAt":1746108566998,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/bb70fcae4115d24b7e8cee17a6da8b1943f546bb"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/3a41c0f2a5c3bf72b4c4e9dd4b1025378201e332"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/fd0efd4f7bfe611a8339ba01bc2ac3c33e79159d"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/e0d75267f59d7084e0468bd68beeb1bf9c71d7c0"}],"remediation":[],"revision":"3fccb576ad97e09746b2678332d147158488073b5c04519ef84218d6c7d37cbe","sources":[{"modifiedAt":1793908189309,"name":"CNA: Linux","retrievedAt":1793909427694,"url":"https://www.cve.org/CVERecord?id=CVE-2022-49797"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793909454888,"url":"https://api.first.org/data/v1/epss?cve=CVE-2022-49797"}],"ssvc":{"assessedAt":1793908109536,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"tracing: kprobe: Fix potential null-ptr-deref on trace_event_file in kprobe_event_gen_test_exit()","updatedAt":1793909454888}