5.5

CVE-2024-53221: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-53221DEBIAN-CVE-2024-53221
Published 27-12-2024Last modified 01-06-2026
Open JSON

Vulnerability summary

CVE-2024-53221 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 23 · Related 25
USN-7310-1USN-7449-1USN-7449-2USN-7450-1USN-7451-1USN-7452-1

Timeline

  1. 27-12-2024
    PublishedVulnerability first disclosed.
  2. 01-06-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix null-ptr-deref in f2fs_submit_page_bio() There's issue as follows when concurrently installing the f2fs.ko module and mounting the f2fs file system: KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] RIP: 0010:__bio_alloc+0x2fb/0x6c0 [f2fs] Call Trace: <TASK> f2fs_submit_page_bio+0x126/0x8b0 [f2fs] __get_meta_page+0x1d4/0x920 [f2fs] get_checkpoint_version.constprop.0+0x2b/0x3c0 [f2fs] validate_checkpoint+0xac/0x290 [f2fs] f2fs_get_valid_checkpoint+0x207/0x950 [f2fs] f2fs_fill_super+0x1007/0x39b0 [f2fs] mount_bdev+0x183/0x250 legacy_get_tree+0xf4/0x1e0 vfs_get_tree+0x88/0x340 do_new_mount+0x283/0x5e0 path_mount+0x2b2/0x15b0 __x64_sys_mount+0x1fe/0x270 do_syscall_64+0x5f/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e Above issue happens as the biset of the f2fs file system is not initialized before register "f2fs_fs_type". To address above issue just register "f2fs_fs_type" at the last in init_f2fs_fs(). Ensure that all f2fs file system resources are initialized.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.22%

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

Affected systems

Ubuntu123 products
  • linux< 5.15.0-186.196 | < 6.8.0-58.60
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1112.119 | < 6.8.0-1027.29
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ f543805fcd60f3f9a491cfa2f2dc9284d2569c28, < 4289be8465924748daa9bf14866eb7f0987d4e39 | ≥ f543805fcd60f3f9a491cfa2f2dc9284d2569c28, < bd9197b72d772be7bccc3b66c83a3157cfe2f96f | ≥ f543805fcd60f3f9a491cfa2f2dc9284d2569c28, < 8dddc12d03248755d9f709bc1eb9e3ea2bf1b322 | ≥ f543805fcd60f3f9a491cfa2f2dc9284d2569c28, < 32f5e291b7677495f98246eec573767430321c08 | ≥ f543805fcd60f3f9a491cfa2f2dc9284d2569c28, < 9e11b1d5fda972f6be60ab732976a7c8e064cd56 | ≥ f543805fcd60f3f9a491cfa2f2dc9284d2569c28, < b7d0a97b28083084ebdd8e5c6bccd12e6ec18faa | 5.6
  • linux_kernel≥ 5.6, < 6.11.11 | ≥ 6.12, < 6.12.2
Debian1 product
  • linux< 6.1.176-1 | < 6.12.3-1

3 vendors · 126 products

References

35 links
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