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Vulnerability details: VCID-n7bz-kduz-hyfm
Vulnerability ID VCID-n7bz-kduz-hyfm
Aliases CVE-2024-44942
Summary In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during GC syzbot reports a f2fs bug as below: ------------[ cut here ]------------ kernel BUG at fs/f2fs/inline.c:258! CPU: 1 PID: 34 Comm: kworker/u8:2 Not tainted 6.9.0-rc6-syzkaller-00012-g9e4bc4bcae01 #0 RIP: 0010:f2fs_write_inline_data+0x781/0x790 fs/f2fs/inline.c:258 Call Trace: f2fs_write_single_data_page+0xb65/0x1d60 fs/f2fs/data.c:2834 f2fs_write_cache_pages fs/f2fs/data.c:3133 [inline] __f2fs_write_data_pages fs/f2fs/data.c:3288 [inline] f2fs_write_data_pages+0x1efe/0x3a90 fs/f2fs/data.c:3315 do_writepages+0x35b/0x870 mm/page-writeback.c:2612 __writeback_single_inode+0x165/0x10b0 fs/fs-writeback.c:1650 writeback_sb_inodes+0x905/0x1260 fs/fs-writeback.c:1941 wb_writeback+0x457/0xce0 fs/fs-writeback.c:2117 wb_do_writeback fs/fs-writeback.c:2264 [inline] wb_workfn+0x410/0x1090 fs/fs-writeback.c:2304 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3335 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416 kthread+0x2f2/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 The root cause is: inline_data inode can be fuzzed, so that there may be valid blkaddr in its direct node, once f2fs triggers background GC to migrate the block, it will hit f2fs_bug_on() during dirty page writeback. Let's add sanity check on F2FS_INLINE_DATA flag in inode during GC, so that, it can forbid migrating inline_data inode's data block for fixing.
Status Published
Exploitability 0.5
Weighted Severity 6.4
Risk 3.2
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-99 Improper Control of Resource Identifiers ('Resource Injection')
System Score Found at
cvssv3 7.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-44942.json
epss 0.00032 https://api.first.org/data/v1/epss?cve=CVE-2024-44942
epss 0.00032 https://api.first.org/data/v1/epss?cve=CVE-2024-44942
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
ssvc Track https://git.kernel.org/stable/c/26c07775fb5dc74351d1c3a2bc3cdf609b03e49f
ssvc Track https://git.kernel.org/stable/c/ae00e6536a2dd54b64b39e9a39548870cf835745
ssvc Track https://git.kernel.org/stable/c/fc01008c92f40015aeeced94750855a7111b6929
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-44942.json
https://api.first.org/data/v1/epss?cve=CVE-2024-44942
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-44942
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2307901 https://bugzilla.redhat.com/show_bug.cgi?id=2307901
26c07775fb5dc74351d1c3a2bc3cdf609b03e49f https://git.kernel.org/stable/c/26c07775fb5dc74351d1c3a2bc3cdf609b03e49f
ae00e6536a2dd54b64b39e9a39548870cf835745 https://git.kernel.org/stable/c/ae00e6536a2dd54b64b39e9a39548870cf835745
fc01008c92f40015aeeced94750855a7111b6929 https://git.kernel.org/stable/c/fc01008c92f40015aeeced94750855a7111b6929
USN-7121-1 https://usn.ubuntu.com/7121-1/
USN-7121-2 https://usn.ubuntu.com/7121-2/
USN-7121-3 https://usn.ubuntu.com/7121-3/
USN-7148-1 https://usn.ubuntu.com/7148-1/
USN-7154-1 https://usn.ubuntu.com/7154-1/
USN-7154-2 https://usn.ubuntu.com/7154-2/
USN-7155-1 https://usn.ubuntu.com/7155-1/
USN-7156-1 https://usn.ubuntu.com/7156-1/
USN-7159-1 https://usn.ubuntu.com/7159-1/
USN-7159-2 https://usn.ubuntu.com/7159-2/
USN-7159-3 https://usn.ubuntu.com/7159-3/
USN-7159-4 https://usn.ubuntu.com/7159-4/
USN-7159-5 https://usn.ubuntu.com/7159-5/
USN-7166-1 https://usn.ubuntu.com/7166-1/
USN-7166-2 https://usn.ubuntu.com/7166-2/
USN-7166-3 https://usn.ubuntu.com/7166-3/
USN-7166-4 https://usn.ubuntu.com/7166-4/
USN-7186-1 https://usn.ubuntu.com/7186-1/
USN-7186-2 https://usn.ubuntu.com/7186-2/
USN-7194-1 https://usn.ubuntu.com/7194-1/
USN-7195-1 https://usn.ubuntu.com/7195-1/
USN-7195-2 https://usn.ubuntu.com/7195-2/
USN-7196-1 https://usn.ubuntu.com/7196-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-44942.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-10T15:27:26Z/ Found at https://git.kernel.org/stable/c/26c07775fb5dc74351d1c3a2bc3cdf609b03e49f
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-10T15:27:26Z/ Found at https://git.kernel.org/stable/c/ae00e6536a2dd54b64b39e9a39548870cf835745
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-10T15:27:26Z/ Found at https://git.kernel.org/stable/c/fc01008c92f40015aeeced94750855a7111b6929
Exploit Prediction Scoring System (EPSS)
Percentile 0.09592
EPSS Score 0.00032
Published At June 7, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:51:23.670403+00:00 Debian Importer Import https://security-tracker.debian.org/tracker/data/json 38.6.0