CVE-2023-54073

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> tpm: Add !tpm_amd_is_rng_defective() to the hwrng_unregister() call site<br /> <br /> The following crash was reported:<br /> <br /> [ 1950.279393] list_del corruption, ffff99560d485790-&gt;next is NULL<br /> [ 1950.279400] ------------[ cut here ]------------<br /> [ 1950.279401] kernel BUG at lib/list_debug.c:49!<br /> [ 1950.279405] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI<br /> [ 1950.279407] CPU: 11 PID: 5886 Comm: modprobe Tainted: G O 6.2.8_1 #1<br /> [ 1950.279409] Hardware name: Gigabyte Technology Co., Ltd. B550M AORUS PRO-P/B550M AORUS PRO-P,<br /> BIOS F15c 05/11/2022<br /> [ 1950.279410] RIP: 0010:__list_del_entry_valid+0x59/0xc0<br /> [ 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<br /> cc 48 89 fe 48 c7 c7 08 a8 13 9e e8 b7 0a bc ff 0b 48 89 fe 48 c7 c7 38 a8 13 9e e8 a6 0a bc<br /> ff 0f 0b 48 89 fe<br /> [ 1950.279416] RSP: 0018:ffffa96d05647e08 EFLAGS: 00010246<br /> [ 1950.279418] RAX: 0000000000000033 RBX: ffff99560d485750 RCX: 0000000000000000<br /> [ 1950.279419] RDX: 0000000000000000 RSI: ffffffff9e107c59 RDI: 00000000ffffffff<br /> [ 1950.279420] RBP: ffffffffc19c5168 R08: 0000000000000000 R09: ffffa96d05647cc8<br /> [ 1950.279421] R10: 0000000000000003 R11: ffffffff9ea2a568 R12: 0000000000000000<br /> [ 1950.279422] R13: ffff99560140a2e0 R14: ffff99560127d2e0 R15: 0000000000000000<br /> [ 1950.279422] FS: 00007f67da795380(0000) GS:ffff995d1f0c0000(0000) knlGS:0000000000000000<br /> [ 1950.279424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033<br /> [ 1950.279424] CR2: 00007f67da7e65c0 CR3: 00000001feed2000 CR4: 0000000000750ee0<br /> [ 1950.279426] PKRU: 55555554<br /> [ 1950.279426] Call Trace:<br /> [ 1950.279428] <br /> [ 1950.279430] hwrng_unregister+0x28/0xe0 [rng_core]<br /> [ 1950.279436] tpm_chip_unregister+0xd5/0xf0 [tpm]<br /> <br /> Add the forgotten !tpm_amd_is_rng_defective() invariant to the<br /> hwrng_unregister() call site inside tpm_chip_unregister().