# CVE-2022-49800: linux: In the Linux kernel, the following vulnerability has been resolved:  tracing: Fix memory leak in test_gen_synth_cmd()...

CVE-2022-49800 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49800, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-49800
- 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 test_gen_synth_cmd() and test_empty_synth_event()  test_gen_synth_cmd() only free buf in fail path, hence buf will leak when there is no failure. Add kfree(buf) to prevent the memleak. The same reason and solution in test_empty_synth_event().  unreferenced object 0xffff8881127de000 (size 2048):   comm "modprobe", pid 247, jiffies 4294972316 (age 78.756s)   hex dump (first 32 bytes):     20 67 65 6e 5f 73 79 6e 74 68 5f 74 65 73 74 20   gen_synth_test     20 70 69 64 5f 74 20 6e 65 78 74 5f 70 69 64 5f   pid_t next_pid_   backtrace:     [<000000004254801a>] kmalloc_trace+0x26/0x100     [<0000000039eb1cf5>] 0xffffffffa00083cd     [<000000000e8c3bc8>] 0xffffffffa00086ba     [<00000000c293d1ea>] do_one_initcall+0xdb/0x480     [<00000000aa189e6d>] do_init_module+0x1cf/0x680     [<00000000d513222b>] load_module+0x6a50/0x70a0     [<000000001fd4d529>] __do_sys_finit_module+0x12f/0x1c0     [<00000000b36c4c0f>] do_syscall_64+0x3f/0x90     [<00000000bbf20cf3>] entry_SYSCALL_64_after_hwframe+0x63/0xcd unreferenced object 0xffff8881127df000 (size 2048):   comm "modprobe", pid 247, jiffies 4294972324 (age 78.728s)   hex dump (first 32 bytes):     20 65 6d 70 74 79 5f 73 79 6e 74 68 5f 74 65 73   empty_synth_tes     74 20 20 70 69 64 5f 74 20 6e 65 78 74 5f 70 69  t  pid_t next_pi   backtrace:     [<000000004254801a>] kmalloc_trace+0x26/0x100     [<00000000d4db9a3d>] 0xffffffffa0008071     [<00000000c31354a5>] 0xffffffffa00086ce     [<00000000c293d1ea>] do_one_initcall+0xdb/0x480     [<00000000aa189e6d>] do_init_module+0x1cf/0x680     [<00000000d513222b>] load_module+0x6a50/0x70a0     [<000000001fd4d529>] __do_sys_finit_module+0x12f/0x1c0     [<00000000b36c4c0f>] do_syscall_64+0x3f/0x90     [<00000000bbf20cf3>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.0.10-1 | [DEBIAN-CVE-2022-49800](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49800.md) | May 1, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.0.10-1 | [DEBIAN-CVE-2022-49800](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49800.md) | May 1, 2025 |
| Linux | linux Debian 14 | 6.0.10-1 | [DEBIAN-CVE-2022-49800](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49800.md) | May 1, 2025 |

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