CVE-2022-49801
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix memory leak in tracing_read_pipe() kmemleak reports this issue: unreferenced object 0xffff888105a18900 (size 128): comm "test_progs", pid 18933, jiffies 4336275356 (age 22801.766s) hex dump (first 32 bytes): 25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04 %s......&...B.X. 03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000560143a1>] __kmalloc_node_track_caller+0x4a/0x140 [<000000006af00822>] krealloc+0x8d/0xf0 [<00000000c309be6a>] trace_iter_expand_format+0x99/0x150 [<000000005a53bdb6>] trace_check_vprintf+0x1e0/0x11d0 [<0000000065629d9d>] trace_event_printf+0xb6/0xf0 [<000000009a690dc7>] trace_raw_output_bpf_trace_printk+0x89/0xc0 [<00000000d22db172>] print_trace_line+0x73c/0x1480 [<00000000cdba76ba>] tracing_read_pipe+0x45c/0x9f0 [<0000000015b58459>] vfs_read+0x17b/0x7c0 [<000000004aeee8ed>] ksys_read+0xed/0x1c0 [<0000000063d3d898>] do_syscall_64+0x3b/0x90 [<00000000a06dda7f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd iter->fmt alloced in tracing_read_pipe() -> .. ->trace_iter_expand_format(), but not freed, to fix, add free in tracing_release_pipe()
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-05-01 15:16:03.407000
Last modified
2026-11-05 20:17:12.570000
View original CVE JSON
{
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-05-01T15:16:03.407",
"lastModified": "2026-11-05T20:17:12.570",
"vulnStatus": "Analyzed",
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix memory leak in tracing_read_pipe()\n\nkmemleak reports this issue:\n\nunreferenced object 0xffff888105a18900 (size 128):\n comm \"test_progs\", pid 18933, jiffies 4336275356 (age 22801.766s)\n hex dump (first 32 bytes):\n 25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04 %s......&...B.X.\n 03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [<00000000560143a1>] __kmalloc_node_track_caller+0x4a/0x140\n [<000000006af00822>] krealloc+0x8d/0xf0\n [<00000000c309be6a>] trace_iter_expand_format+0x99/0x150\n [<000000005a53bdb6>] trace_check_vprintf+0x1e0/0x11d0\n [<0000000065629d9d>] trace_event_printf+0xb6/0xf0\n [<000000009a690dc7>] trace_raw_output_bpf_trace_printk+0x89/0xc0\n [<00000000d22db172>] print_trace_line+0x73c/0x1480\n [<00000000cdba76ba>] tracing_read_pipe+0x45c/0x9f0\n [<0000000015b58459>] vfs_read+0x17b/0x7c0\n [<000000004aeee8ed>] ksys_read+0xed/0x1c0\n [<0000000063d3d898>] do_syscall_64+0x3b/0x90\n [<00000000a06dda7f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\niter->fmt alloced in\n tracing_read_pipe() -> .. ->trace_iter_expand_format(), but not\nfreed, to fix, add free in tracing_release_pipe()"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing: Fix memory leakage in tracing_read_pipe() kmemleak informa de este problema: unreferenced object 0xffff888105a18900 (size 128): comm \"test_progs\", pid 18933, jiffies 4336275356 (age 22801.766s) hex dump (first 32 bytes): 25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04 %s......&...BX 03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000560143a1>] __kmalloc_nodo_rastreador_llamador+0x4a/0x140 [<000000006af00822>] krealloc+0x8d/0xf0 [<00000000c309be6a>] trace_iter_expand_format+0x99/0x150 [<000000005a53bdb6>] trace_check_vprintf+0x1e0/0x11d0 [<0000000065629d9d>] trace_event_printf+0xb6/0xf0 [<000000009a690dc7>] trace_raw_output_bpf_trace_printk+0x89/0xc0 [<00000000d22db172>] imprimir_línea_de_seguimiento+0x73c/0x1480 [<00000000cdba76ba>] conducto_de_lectura_de_seguimiento+0x45c/0x9f0 [<0000000015b58459>] lectura_vfs+0x17b/0x7c0 [<000000004aeee8ed>] lectura_ksys+0xed/0x1c0 [<0000000063d3d898>] hacer_llamada_al_sistema_64+0x3b/0x90 [<00000000a06dda7f>] entrada_SYSCALL_64_después_de_hwframe+0x63/0xcd iter->fmt asignado en conducto_de_lectura_de_seguimiento() -> .. ->trace_iter_expand_format(), pero no se libera, para solucionarlo, agregue free en tracing_release_pipe()"
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