CVE-2024-43859
mediumpriority · track · 22EPSS 0.002 · 15 %ileDEEUNLRUUSEPSS · scored 2026-10-27
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to truncate preallocated blocks in f2fs_file_open() chenyuwen reports a f2fs bug as below: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000011 fscrypt_set_bio_crypt_ctx+0x78/0x1e8 f2fs_grab_read_bio+0x78/0x208 f2fs_submit_page_read+0x44/0x154 f2fs_get_read_data_page+0x288/0x5f4 f2fs_get_lock_data_page+0x60/0x190 truncate_partial_data_page+0x108/0x4fc f2fs_do_truncate_blocks+0x344/0x5f0 f2fs_truncate_blocks+0x6c/0x134 f2fs_truncate+0xd8/0x200 f2fs_iget+0x20c/0x5ac do_garbage_collect+0x5d0/0xf6c f2fs_gc+0x22c/0x6a4 f2fs_disable_checkpoint+0xc8/0x310 f2fs_fill_super+0x14bc/0x1764 mount_bdev+0x1b4/0x21c f2fs_mount+0x20/0x30 legacy_get_tree+0x50/0xbc vfs_get_tree+0x5c/0x1b0 do_new_mount+0x298/0x4cc path_mount+0x33c/0x5fc __arm64_sys_mount+0xcc/0x15c invoke_syscall+0x60/0x150 el0_svc_common+0xb8/0xf8 do_el0_svc+0x28/0xa0 el0_svc+0x24/0x84 el0t_64_sync_handler+0x88/0xec It is because inode.i_crypt_info is not initialized during below path: - mount - f2fs_fill_super - f2fs_disable_checkpoint - f2fs_gc - f2fs_iget - f2fs_truncate So, let's relocate truncation of preallocated blocks to f2fs_file_open(), after fscrypt_file_open().
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (51)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0074Kwetsbaarheden verholpen in Google Android en Samsung MobileNL2026-03-03csaf · ncsc_nlNL
Google heeft kwetsbaarheden verholpen in Android. In deze update zijn ook updates meegenomen voor closed-source componenten van Qualcomm, Imagination Technologies, Unisoc en MediaTek. Samsung heeft kwetsbaarheden in Samsung Mobile verholpen die relevant zijn voor Samsung mobile devices.
- WID-SEC-W-2024-1875Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2024-08-18csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder unbekannte Auswirkungen zu erzielen.
- WID-SEC-W-2026-0569Google Android: Mehrere SchwachstellenDeutsch2026-03-02csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um sich erweiterte Berechtigungen zu verschaffen, beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu verursachen, vertrauliche Informationen offenzulegen oder andere nicht näher spezifizierte Angriffe durchzuführen.
- ASB-A-4558920002026-03-01vendor · osvUS
In multiple locations, there is a possible persistent denial of service due to uninitialized data. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2024-43859cnnvd
- https://cxsecurity.com/cveshow/CVE-2024-43859/cnnvd
- https://git.kernel.org/stable/c/298b1e4182d657c3e388adcc29477904e9600ed5cnnvd
- https://git.kernel.org/stable/c/3ba0ae885215b325605ff7ebf6de12ac2adf204dcnnvd
- https://git.kernel.org/stable/c/f44a25a8bfe0c15d33244539696cd9119cf44d18cnnvd
- https://git.kernel.org/stable/c/298b1e4182d657c3e388adcc29477904e9600ed5enisa_euvd
- https://git.kernel.org/stable/c/3ba0ae885215b325605ff7ebf6de12ac2adf204denisa_euvd
- https://git.kernel.org/stable/c/5f04969136db674f133781626e0b692c5f2bf2f0enisa_euvd
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