CVE-2023-54073
In the Linux kernel, the following vulnerability has been resolved: tpm: Add !tpm_amd_is_rng_defective() to the hwrng_unregister() call site The following crash was reported: [ 1950.279393] list_del corruption, ffff99560d485790->next is NULL [ 1950.279400] ------------[ cut here ]------------ [ 1950.279401] kernel BUG at lib/list_debug.c:49! [ 1950.279405] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 1950.279407] CPU: 11 PID: 5886 Comm: modprobe Tainted: G O 6.2.8_1 #1 [ 1950.279409] Hardware name: Gigabyte Technology Co., Ltd. B550M AORUS PRO-P/B550M AORUS PRO-P, BIOS F15c 05/11/2022 [ 1950.279410] RIP: 0010:__list_del_entry_valid+0x59/0xc0 [ 1950.279415] Code: 48 8b 01 48 39 f8 75 5a 48 8b 72 08 48 39 c6 75 65 b8 01 00 00 00 c3 cc cc cc cc 48 89 fe 48 c7 c7 08 a8 13 9e e8 b7 0a bc ff <0f> 0b 48 89 fe 48 c7 c7 38 a8 13 9e e8 a6 0a bc ff 0f 0b 48 89 fe [ 1950.279416] RSP: 0018:ffffa96d05647e08 EFLAGS: 00010246 [ 1950.279418] RAX: 0000000000000033 RBX: ffff99560d485750 RCX: 0000000000000000 [ 1950.279419] RDX: 0000000000000000 RSI: ffffffff9e107c59 RDI: 00000000ffffffff [ 1950.279420] RBP: ffffffffc19c5168 R08: 0000000000000000 R09: ffffa96d05647cc8 [ 1950.279421] R10: 0000000000000003 R11: ffffffff9ea2a568 R12: 0000000000000000 [ 1950.279422] R13: ffff99560140a2e0 R14: ffff99560127d2e0 R15: 0000000000000000 [ 1950.279422] FS: 00007f67da795380(0000) GS:ffff995d1f0c0000(0000) knlGS:0000000000000000 [ 1950.279424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1950.279424] CR2: 00007f67da7e65c0 CR3: 00000001feed2000 CR4: 0000000000750ee0 [ 1950.279426] PKRU: 55555554 [ 1950.279426] Call Trace: [ 1950.279428] <TASK> [ 1950.279430] hwrng_unregister+0x28/0xe0 [rng_core] [ 1950.279436] tpm_chip_unregister+0xd5/0xf0 [tpm] Add the forgotten !tpm_amd_is_rng_defective() invariant to the hwrng_unregister() call site inside tpm_chip_unregister().
Affected versions
Linux kernel versions
6.1
and later are affected. Fixed in
6.1.28,
6.2.15,
6.3.2,
6.4
and their respective stable series.
References
The following references provide additional information about CVE-2023-54073 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/0af0a989e747248e05640980661225e5b94cdb9e
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PatchKernel patch commithttps://git.kernel.org/stable/c/1408d27f25c7b73ece7545cb6434965eedc49ddb
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PatchKernel patch commithttps://git.kernel.org/stable/c/8da5ba044ea74105f3cfa182603b2f2d766fb22d
Frequently asked questions
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What is CVE-2023-54073?
CVE-2023-54073 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.1 onward and has been patched in 6.1.28, 6.2.15, 6.3.2 and others. CVE-2023-54073 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-2023-54073?
Yes — CVE-2023-54073 has been patched. Fixed versions include 6.1.28, 6.2.15, 6.3.2 and others. If you are running Linux kernel 6.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-54073 actively exploited?
No — CVE-2023-54073 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.