# CVE-2022-49801: linux: In the Linux kernel, the following vulnerability has been resolved:  tracing: Fix memory leak in tracing_read_pipe()...

CVE-2022-49801 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49801, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-49801
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 1, 2025

## 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()

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.0.10-1 | [DEBIAN-CVE-2022-49801](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49801.md) | May 1, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.0.10-1 | [DEBIAN-CVE-2022-49801](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49801.md) | May 1, 2025 |
| Linux | linux Debian 14 | 6.0.10-1 | [DEBIAN-CVE-2022-49801](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49801.md) | May 1, 2025 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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