NVD

CVE-2022-48635 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

Description

In the Linux kernel, the following vulnerability has been resolved: fsdax: Fix infinite loop in dax_iomap_rw() I got an infinite loop and a WARNING report when executing a tail command in virtiofs. WARNING: CPU: 10 PID: 964 at fs/iomap/iter.c:34 iomap_iter+0x3a2/0x3d0 Modules linked in: CPU: 10 PID: 964 Comm: tail Not tainted 5.19.0-rc7 Call Trace: <TASK> dax_iomap_rw+0xea/0x620 ? __this_cpu_preempt_check+0x13/0x20 fuse_dax_read_iter+0x47/0x80 fuse_file_read_iter+0xae/0xd0 new_sync_read+0xfe/0x180 ? 0xffffffff81000000 vfs_read+0x14d/0x1a0 ksys_read+0x6d/0xf0 __x64_sys_read+0x1a/0x20 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The tail command will call read() with a count of 0. In this case, iomap_iter() will report this WARNING, and always return 1 which casuing the infinite loop in dax_iomap_rw(). Fixing by checking count whether is 0 in dax_iomap_rw().

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

ADP: CISA-ADP

Base Score: 6.2 MEDIUM

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3	CVE, kernel.org	Patch
https://git.kernel.org/stable/c/463f36137c40342fb03bba380c1bf703c40d89a6	kernel.org
https://git.kernel.org/stable/c/60644dffac87b1bb47bdb393aa29d5f2ffcf41a0	CVE, kernel.org	Patch
https://git.kernel.org/stable/c/929ef155e1da41c06f4d8ca86ae12b851a83a744	CVE, kernel.org	Patch

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-835	Loop with Unreachable Exit Condition ('Infinite Loop')	CISA-ADP

Known Affected Software Configurations Switch to CPE 2.2

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Change History

9 change records found show changes

CVE Modified by kernel.org 6/17/2026 1:15:46 AM

Action

Type

Old Value

New Value

Added

Affected

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/dax.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"8df4919cb921b28809d05feae3e98dc5d8b48146","lessThan":"463f36137c40342fb03bba380c1bf703c40d89a6","versionType":"git","status":"affected"},{"version":"ca289e0b95afa973d204c77a4ad5c37e06145fbf","lessThan":"929ef155e1da41c06f4d8ca86ae12b851a83a744","versionType":"git","status":"affected"},{"version":"ca289e0b95afa973d204c77a4ad5c37e06145fbf","lessThan":"60644dffac87b1bb47bdb393aa29d5f2ffcf41a0","versionType":"git","status":"affected"},{"version":"ca289e0b95afa973d204c77a4ad5c37e06145fbf","lessThan":"17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/dax.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.15","status":"affected"},{"version":"0","lessThan":"5.15","versionType":"semver","status":"unaffected"},{"version":"5.15.71","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"5.19.12","lessThanOrEqual":"5.19.*","versionType":"semver","status":"unaffected"},{"version":"6.0","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]

Initial Analysis by NIST 3/21/2025 2:26:27 PM

Action	Type	New Value
Added	CPE Configuration	OR cpe:2.3:o:linux:linux_kernel:6.0:rc3::::::* cpe:2.3:o:linux:linux_kernel:6.0:rc1::::::* cpe:2.3:o:linux:linux_kernel:6.0:rc2::::::* cpe:2.3:o:linux:linux_kernel:6.0:rc4::::::* cpe:2.3:o:linux:linux_kernel:6.0:rc5::::::* cpe:2.3:o:linux:linux_kernel:6.0:rc6::::::* cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.15 up to (excluding) 5.15.71 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.16 up to (excluding) 5.19.12
Added	Reference Type	CVE: https://git.kernel.org/stable/c/17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3 Types: Patch
Added	Reference Type	CVE: https://git.kernel.org/stable/c/60644dffac87b1bb47bdb393aa29d5f2ffcf41a0 Types: Patch
Added	Reference Type	CVE: https://git.kernel.org/stable/c/929ef155e1da41c06f4d8ca86ae12b851a83a744 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/60644dffac87b1bb47bdb393aa29d5f2ffcf41a0 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/929ef155e1da41c06f4d8ca86ae12b851a83a744 Types: Patch

New CVE Received from kernel.org 4/28/2024 9:15:06 AM

Action	Type	New Value
Added	Description	In the Linux kernel, the following vulnerability has been resolved: fsdax: Fix infinite loop in dax_iomap_rw() I got an infinite loop and a WARNING report when executing a tail command in virtiofs. WARNING: CPU: 10 PID: 964 at fs/iomap/iter.c:34 iomap_iter+0x3a2/0x3d0 Modules linked in: CPU: 10 PID: 964 Comm: tail Not tainted 5.19.0-rc7 Call Trace: <TASK> dax_iomap_rw+0xea/0x620 ? __this_cpu_preempt_check+0x13/0x20 fuse_dax_read_iter+0x47/0x80 fuse_file_read_iter+0xae/0xd0 new_sync_read+0xfe/0x180 ? 0xffffffff81000000 vfs_read+0x14d/0x1a0 ksys_read+0x6d/0xf0 __x64_sys_read+0x1a/0x20 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The tail command will call read() with a count of 0. In this case, iomap_iter() will report this WARNING, and always return 1 which casuing the infinite loop in dax_iomap_rw(). Fixing by checking count whether is 0 in dax_iomap_rw().
Added	Reference	kernel.org https://git.kernel.org/stable/c/17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3 [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/60644dffac87b1bb47bdb393aa29d5f2ffcf41a0 [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/929ef155e1da41c06f4d8ca86ae12b851a83a744 [No types assigned]

Quick Info

CVE Dictionary Entry:
CVE-2022-48635
NVD Published Date:
04/28/2024
NVD Last Modified:
06/17/2026
Source:
kernel.org

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2022-48635 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CISA-ADP 6/17/2026 1:15:46 AM

CVE Modified by kernel.org 6/17/2026 1:15:46 AM

CVE Modified by kernel.org 10/29/2025 10:15:49 AM

Initial Analysis by NIST 3/21/2025 2:26:27 PM

CVE Modified by CVE 11/21/2024 2:33:39 AM

CVE Modified by CISA-ADP 7/02/2024 9:39:01 PM

CVE Modified by kernel.org 5/28/2024 4:16:13 PM

CVE Modified by kernel.org 5/14/2024 7:51:56 AM

New CVE Received from kernel.org 4/28/2024 9:15:06 AM

Quick Info