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CVE-2023-53301

f2fs: fix kernel crash due to null io->bio

High7.1EPSS 0.15%
Published
Updated
Reserved
Assigned by
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix kernel crash due to null io->bio We should return when io->bio is null before doing anything. Otherwise, panic. BUG: kernel NULL pointer dereference, address: 0000000000000010 RIP: 0010:__submit_merged_write_cond+0x164/0x240 [f2fs] Call Trace: <TASK> f2fs_submit_merged_write+0x1d/0x30 [f2fs] commit_checkpoint+0x110/0x1e0 [f2fs] f2fs_write_checkpoint+0x9f7/0xf00 [f2fs] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs] __checkpoint_and_complete_reqs+0x84/0x190 [f2fs] ? preempt_count_add+0x82/0xc0 ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs] issue_checkpoint_thread+0x4c/0xf0 [f2fs] ? __pfx_autoremove_wake_function+0x10/0x10 kthread+0xff/0x130 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2c/0x50 </TASK>

Scores

CVSS scores of CVE-2023-53301, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1High7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS (exploitation in 30 days)
0.15% · top 96% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Affected products

  • Linux · Linux

    • affected 64bf0eef0171912f7c2f3ea30ee6ad7a2ad0a511 – < 83dbb9a1bd5ef2eea73275906fc50b2fdda39cd5
    • affected 64bf0eef0171912f7c2f3ea30ee6ad7a2ad0a511 – < eb52f13c6093ac761dbeaa459c810fc0253209fc
    • affected 64bf0eef0171912f7c2f3ea30ee6ad7a2ad0a511 – < 267c159f9c7bcb7009dae16889b880c5ed8759a8

  • Linux · Linux

    • affected 5.18
    • unaffected < 5.18
    • unaffected 6.1.16 – ≤ 6.1.*
    • unaffected 6.2.3 – ≤ 6.2.*
    • unaffected 6.3 – ≤ *

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .