ghsa-q725-94pj-f5xx
Vulnerability from github
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()
{
"affected": [],
"aliases": [
"CVE-2022-49801"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T15:16:03Z",
"severity": null
},
"details": "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......\u0026...B.X.\n 03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [\u003c00000000560143a1\u003e] __kmalloc_node_track_caller+0x4a/0x140\n [\u003c000000006af00822\u003e] krealloc+0x8d/0xf0\n [\u003c00000000c309be6a\u003e] trace_iter_expand_format+0x99/0x150\n [\u003c000000005a53bdb6\u003e] trace_check_vprintf+0x1e0/0x11d0\n [\u003c0000000065629d9d\u003e] trace_event_printf+0xb6/0xf0\n [\u003c000000009a690dc7\u003e] trace_raw_output_bpf_trace_printk+0x89/0xc0\n [\u003c00000000d22db172\u003e] print_trace_line+0x73c/0x1480\n [\u003c00000000cdba76ba\u003e] tracing_read_pipe+0x45c/0x9f0\n [\u003c0000000015b58459\u003e] vfs_read+0x17b/0x7c0\n [\u003c000000004aeee8ed\u003e] ksys_read+0xed/0x1c0\n [\u003c0000000063d3d898\u003e] do_syscall_64+0x3b/0x90\n [\u003c00000000a06dda7f\u003e] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\niter-\u003efmt alloced in\n tracing_read_pipe() -\u003e .. -\u003etrace_iter_expand_format(), but not\nfreed, to fix, add free in tracing_release_pipe()",
"id": "GHSA-q725-94pj-f5xx",
"modified": "2025-05-01T15:31:47Z",
"published": "2025-05-01T15:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49801"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2c21ee020ce43d744ecd7f3e9bddfcaafef270ce"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/649e72070cbbb8600eb823833e4748f5a0815116"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a7d3f8f33c113478737bc61bb32ec5f9a987da7d"
}
],
"schema_version": "1.4.0",
"severity": []
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.