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CVE-2024-37078— nilfs2: fix potential kernel bug due to lack of writeback flag waiting

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于缺少写回标志等待，从而导致olio/page写回启动例程或写回结束 例程中出现内核错误。

CVSS 7.8 · High EPSS 0.26% · P16

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453< 95f6f81e50d858a7c9aa7c795ec14a0ac3819118 affected
9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453< a75b8f493dfc48aa38c518430bd9e03b53bffebe affected
9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453< 0ecfe3a92869a59668d27228dabbd7965e83567f affected
9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453< 33900d7eae616647e179eee1c66ebe654ee39627 affected
9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453< 271dcd977ccda8c7a26e360425ae7b4db7d2ecc0 affected
9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453< 614d397be0cf43412b3f94a0f6460eddced8ce92 affected
9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453< 1f3bff69f1214fe03a02bc650d5bbfaa6e65ae7d affected
9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453< a4ca369ca221bb7e06c725792ac107f0e48e82e7 affected
… +10 more rows
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I. Basic Information for CVE-2024-37078

Vulnerability Information
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Vulnerability Title
nilfs2: fix potential kernel bug due to lack of writeback flag waiting
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential kernel bug due to lack of writeback flag waiting Destructive writes to a block device on which nilfs2 is mounted can cause a kernel bug in the folio/page writeback start routine or writeback end routine (__folio_start_writeback in the log below): kernel BUG at mm/page-writeback.c:3070! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI ... RIP: 0010:__folio_start_writeback+0xbaa/0x10e0 Code: 25 ff 0f 00 00 0f 84 18 01 00 00 e8 40 ca c6 ff e9 17 f6 ff ff e8 36 ca c6 ff 4c 89 f7 48 c7 c6 80 c0 12 84 e8 e7 b3 0f 00 90 <0f> 0b e8 1f ca c6 ff 4c 89 f7 48 c7 c6 a0 c6 12 84 e8 d0 b3 0f 00 ... Call Trace: <TASK> nilfs_segctor_do_construct+0x4654/0x69d0 [nilfs2] nilfs_segctor_construct+0x181/0x6b0 [nilfs2] nilfs_segctor_thread+0x548/0x11c0 [nilfs2] kthread+0x2f0/0x390 ret_from_fork+0x4b/0x80 ret_from_fork_asm+0x1a/0x30 </TASK> This is because when the log writer starts a writeback for segment summary blocks or a super root block that use the backing device's page cache, it does not wait for the ongoing folio/page writeback, resulting in an inconsistent writeback state. Fix this issue by waiting for ongoing writebacks when putting folios/pages on the backing device into writeback state.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于缺少写回标志等待，从而导致olio/page写回启动例程或写回结束 例程中出现内核错误。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 ~ 95f6f81e50d858a7c9aa7c795ec14a0ac3819118 -
Linux Linux 2.6.30 -

II. Public POCs for CVE-2024-37078

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III. Intelligence Information for CVE-2024-37078

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Other References for CVE-2024-37078 (7)

Same Patch Batch · Linux · 2024-06-25 · 24 CVEs total

CVE-2024-39293 9.8 CRITICAL Revert "xsk: Support redirect to any socket bound to the same umem"
CVE-2024-39471 7.8 HIGH drm/amdgpu: add error handle to avoid out-of-bounds
CVE-2024-37354 7.8 HIGH btrfs: fix crash on racing fsync and size-extending write into prealloc
CVE-2024-38306 7.8 HIGH btrfs: protect folio::private when attaching extent buffer folios
CVE-2024-38385 7.8 HIGH genirq/irqdesc: Prevent use-after-free in irq_find_at_or_after()
CVE-2024-39467 7.8 HIGH f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()
CVE-2024-39463 7.8 HIGH 9p: add missing locking around taking dentry fid list
CVE-2024-39468 7.5 HIGH smb: client: fix deadlock in smb2_find_smb_tcon()
CVE-2024-39469 7.1 HIGH nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors
CVE-2024-39371 io_uring: check for non-NULL file pointer in io_file_can_poll()
CVE-2024-39470 eventfs: Fix a possible null pointer dereference in eventfs_find_events()
CVE-2024-39466 thermal/drivers/qcom/lmh: Check for SCM availability at probe
CVE-2024-39464 media: v4l: async: Fix notifier list entry init
CVE-2024-39465 media: mgb4: Fix double debugfs remove
CVE-2024-39462 clk: bcm: dvp: Assign ->num before accessing ->hws
CVE-2024-39461 clk: bcm: rpi: Assign ->num before accessing ->hws
CVE-2021-4440 x86/xen: Drop USERGS_SYSRET64 paravirt call
CVE-2024-39301 net/9p: fix uninit-value in p9_client_rpc()
CVE-2024-39298 mm/memory-failure: fix handling of dissolved but not taken off from buddy pages
CVE-2024-39296 bonding: fix oops during rmmod

Showing top 20 of 24 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-37078

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