CVE-2022-50578: linux

CVSS: UnknownDeferred
AliasesUBUNTU-CVE-2022-50578DEBIAN-CVE-2022-50578
Published 22-10-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2022-50578 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.5% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.24%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 5
RHSA-2023:6583RHSA-2023:7077SUSE-SU-2025:4111-1SUSE-SU-2025:4139-1SUSE-SU-2025:4149-1SUSE-SU-2025:4320-1

Timeline

  1. 22-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: class: fix possible memory leak in __class_register() If class_add_groups() returns error, the 'cp->subsys' need be unregister, and the 'cp' need be freed. We can not call kset_unregister() here, because the 'cls' will be freed in callback function class_release() and it's also freed in caller's error path, it will cause double free. So fix this by calling kobject_del() and kfree_const(name) to cleanup kobject. Besides, call kfree() to free the 'cp'. Fault injection test can trigger this: unreferenced object 0xffff888102fa8190 (size 8): comm "modprobe", pid 502, jiffies 4294906074 (age 49.296s) hex dump (first 8 bytes): 70 6b 74 63 64 76 64 00 pktcdvd. backtrace: [<00000000e7c7703d>] __kmalloc_track_caller+0x1ae/0x320 [<000000005e4d70bc>] kstrdup+0x3a/0x70 [<00000000c2e5e85a>] kstrdup_const+0x68/0x80 [<000000000049a8c7>] kvasprintf_const+0x10b/0x190 [<0000000029123163>] kobject_set_name_vargs+0x56/0x150 [<00000000747219c9>] kobject_set_name+0xab/0xe0 [<0000000005f1ea4e>] __class_register+0x15c/0x49a unreferenced object 0xffff888037274000 (size 1024): comm "modprobe", pid 502, jiffies 4294906074 (age 49.296s) hex dump (first 32 bytes): 00 40 27 37 80 88 ff ff 00 40 27 37 80 88 ff ff .@'7.....@'7.... 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... backtrace: [<00000000151f9600>] kmem_cache_alloc_trace+0x17c/0x2f0 [<00000000ecf3dd95>] __class_register+0x86/0x49a

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

+0.02 pp

From 0.23% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu118 products
  • linux< 4.15.0-208.220 | < 5.4.0-144.161 | < 5.15.0-69.76
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.15.0-1153.166 | < 5.4.0-1097.105 | < 5.15.0-1033.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.4-1
Linux1 product
  • linux≥ ced6473e7486702f530a49f886b73195e4977734, < 4efa5443817c1b6de22d401aeca5b2481e835f8c | ≥ ced6473e7486702f530a49f886b73195e4977734, < 3bb9c92c27624ad076419a70f2b1a30cd1f8bbbd | ≥ ced6473e7486702f530a49f886b73195e4977734, < 3e0efc3f3f5e5c73996782f8db69963e501bb878 | ≥ ced6473e7486702f530a49f886b73195e4977734, < 18a7200646958cf8e1b8a933de08122fc50676cd | ≥ ced6473e7486702f530a49f886b73195e4977734, < 417ef049e3fd3b0d2593c1d5ffa3d0d5d0a018a7 | ≥ ced6473e7486702f530a49f886b73195e4977734, < e764ad5918a099ebeb909ccff83893a714e497e1 | ≥ ced6473e7486702f530a49f886b73195e4977734, < abaedb68a769e6bf36836b55a2f49b531c5f3f7b | ≥ ced6473e7486702f530a49f886b73195e4977734, < 8c3e8a6bdb5253b97ad532570f8b5db5f7a06407 | 4.10

3 vendors · 120 products

References

12 links
Show all 12 references