CVE-2023-53852
In the Linux kernel, the following vulnerability has been resolved: nvme-core: fix memory leak in dhchap_secret_store Free dhchap_secret in nvme_ctrl_dhchap_secret_store() before we return fix following kmemleack:- unreferenced object 0xffff8886376ea800 (size 64): comm "check", pid 22048, jiffies 4344316705 (age 92.199s) hex dump (first 32 bytes): 44 48 48 43 2d 31 3a 30 30 3a 6e 78 72 35 4b 67 DHHC-1:00:nxr5Kg 75 58 34 75 6f 41 78 73 4a 61 34 63 2f 68 75 4c uX4uoAxsJa4c/huL backtrace: [<0000000030ce5d4b>] __kmalloc+0x4b/0x130 [<000000009be1cdc1>] nvme_ctrl_dhchap_secret_store+0x8f/0x160 [nvme_core] [<00000000ac06c96a>] kernfs_fop_write_iter+0x12b/0x1c0 [<00000000437e7ced>] vfs_write+0x2ba/0x3c0 [<00000000f9491baf>] ksys_write+0x5f/0xe0 [<000000001c46513d>] do_syscall_64+0x3b/0x90 [<00000000ecf348fe>] entry_SYSCALL_64_after_hwframe+0x72/0xdc unreferenced object 0xffff8886376eaf00 (size 64): comm "check", pid 22048, jiffies 4344316736 (age 92.168s) hex dump (first 32 bytes): 44 48 48 43 2d 31 3a 30 30 3a 6e 78 72 35 4b 67 DHHC-1:00:nxr5Kg 75 58 34 75 6f 41 78 73 4a 61 34 63 2f 68 75 4c uX4uoAxsJa4c/huL backtrace: [<0000000030ce5d4b>] __kmalloc+0x4b/0x130 [<000000009be1cdc1>] nvme_ctrl_dhchap_secret_store+0x8f/0x160 [nvme_core] [<00000000ac06c96a>] kernfs_fop_write_iter+0x12b/0x1c0 [<00000000437e7ced>] vfs_write+0x2ba/0x3c0 [<00000000f9491baf>] ksys_write+0x5f/0xe0 [<000000001c46513d>] do_syscall_64+0x3b/0x90 [<00000000ecf348fe>] entry_SYSCALL_64_after_hwframe+0x72/0xdc
Affected versions
Linux kernel versions
6.0
and later are affected. Fixed in
6.1.39,
6.3.13,
6.4.4,
6.5
and their respective stable series.
References
The following references provide additional information about CVE-2023-53852 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/2e9b141307554521d60fecf6bf1d2edc8dd0181d
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PatchKernel patch commithttps://git.kernel.org/stable/c/6a5eda5017959541ab82c5d56bcf784b8294e298
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PatchKernel patch commithttps://git.kernel.org/stable/c/a836ca33c5b07d34dd5347af9f64d25651d12674
Frequently asked questions
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What is CVE-2023-53852?
CVE-2023-53852 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.0 onward and has been patched in 6.1.39, 6.3.13, 6.4.4 and others. CVE-2023-53852 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2023-53852?
Yes — CVE-2023-53852 has been patched. Fixed versions include 6.1.39, 6.3.13, 6.4.4 and others. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-53852 actively exploited?
No — CVE-2023-53852 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.