CVE-2024-43859

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-43859
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-43859.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-43859
Related
Published
2024-08-17T10:15:10Z
Modified
2024-10-03T20:49:50.740482Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to truncate preallocated blocks in f2fsfileopen()

chenyuwen reports a f2fs bug as below:

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000011 fscryptsetbiocryptctx+0x78/0x1e8 f2fsgrabreadbio+0x78/0x208 f2fssubmitpageread+0x44/0x154 f2fsgetreaddatapage+0x288/0x5f4 f2fsgetlockdatapage+0x60/0x190 truncatepartialdatapage+0x108/0x4fc f2fsdotruncateblocks+0x344/0x5f0 f2fstruncateblocks+0x6c/0x134 f2fstruncate+0xd8/0x200 f2fsiget+0x20c/0x5ac dogarbagecollect+0x5d0/0xf6c f2fsgc+0x22c/0x6a4 f2fsdisablecheckpoint+0xc8/0x310 f2fsfillsuper+0x14bc/0x1764 mountbdev+0x1b4/0x21c f2fsmount+0x20/0x30 legacygettree+0x50/0xbc vfsgettree+0x5c/0x1b0 donewmount+0x298/0x4cc pathmount+0x33c/0x5fc _arm64sysmount+0xcc/0x15c invokesyscall+0x60/0x150 el0svccommon+0xb8/0xf8 doel0svc+0x28/0xa0 el0svc+0x24/0x84 el0t64synchandler+0x88/0xec

It is because inode.icryptinfo is not initialized during below path: - mount - f2fsfillsuper - f2fsdisablecheckpoint - f2fsgc - f2fsiget - f2fs_truncate

So, let's relocate truncation of preallocated blocks to f2fsfileopen(), after fscryptfileopen().

References

Affected packages

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.112-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1
6.1.85-1
6.1.90-1~bpo11+1
6.1.90-1
6.1.94-1~bpo11+1
6.1.94-1
6.1.98-1
6.1.99-1
6.1.106-1
6.1.106-2
6.1.106-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.10.3-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1
6.1.85-1
6.1.90-1~bpo11+1
6.1.90-1
6.1.94-1~bpo11+1
6.1.94-1
6.1.98-1
6.1.99-1
6.1.106-1
6.1.106-2
6.1.106-3
6.3.1-1~exp1
6.3.2-1~exp1
6.3.4-1~exp1
6.3.5-1~exp1
6.3.7-1~bpo12+1
6.3.7-1
6.3.11-1
6.4~rc6-1~exp1
6.4~rc7-1~exp1
6.4.1-1~exp1
6.4.4-1~bpo12+1
6.4.4-1
6.4.4-2
6.4.4-3~bpo12+1
6.4.4-3
6.4.11-1
6.4.13-1
6.5~rc4-1~exp1
6.5~rc6-1~exp1
6.5~rc7-1~exp1
6.5.1-1~exp1
6.5.3-1~bpo12+1
6.5.3-1
6.5.6-1
6.5.8-1
6.5.10-1~bpo12+1
6.5.10-1
6.5.13-1
6.6.3-1~exp1
6.6.4-1~exp1
6.6.7-1~exp1
6.6.8-1
6.6.9-1
6.6.11-1
6.6.13-1~bpo12+1
6.6.13-1
6.6.15-1
6.6.15-2
6.7-1~exp1
6.7.1-1~exp1
6.7.4-1~exp1
6.7.7-1
6.7.9-1
6.7.9-2
6.7.12-1~bpo12+1
6.7.12-1
6.8.9-1
6.8.11-1
6.8.12-1~bpo12+1
6.8.12-1
6.9.2-1~exp1
6.9.7-1~bpo12+1
6.9.7-1
6.9.8-1
6.9.9-1
6.9.10-1~bpo12+1
6.9.10-1
6.9.11-1
6.9.12-1
6.10-1~exp1
6.10.1-1~exp1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}