CVE-2023-53056

NONE Year: 2023
Weakness Type
NVD-CWE-Other
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Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Synchronize the IOCB count to be in order A system hang was observed with the following call trace: BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 15 PID: 86747 Comm: nvme Kdump: loaded Not tainted 6.2.0+ #1 Hardware name: Dell Inc. PowerEdge R6515/04F3CJ, BIOS 2.7.3 03/31/2022 RIP: 0010:__wake_up_common+0x55/0x190 Code: 41 f6 01 04 0f 85 b2 00 00 00 48 8b 43 08 4c 8d 40 e8 48 8d 43 08 48 89 04 24 48 89 c6\ 49 8d 40 18 48 39 c6 0f 84 e9 00 00 00 <49> 8b 40 18 89 6c 24 14 31 ed 4c 8d 60 e8 41 8b 18 f6 c3 04 75 5d RSP: 0018:ffffb05a82afbba0 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffff8f9b83a00018 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffff8f9b83a00020 RDI: ffff8f9b83a00018 RBP: 0000000000000001 R08: ffffffffffffffe8 R09: ffffb05a82afbbf8 R10: 70735f7472617473 R11: 5f30307832616c71 R12: 0000000000000001 R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f815cf4c740(0000) GS:ffff8f9eeed80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000010633a000 CR4: 0000000000350ee0 Call Trace: <TASK> __wake_up_common_lock+0x83/0xd0 qla_nvme_ls_req+0x21b/0x2b0 [qla2xxx] __nvme_fc_send_ls_req+0x1b5/0x350 [nvme_fc] nvme_fc_xmt_disconnect_assoc+0xca/0x110 [nvme_fc] nvme_fc_delete_association+0x1bf/0x220 [nvme_fc] ? nvme_remove_namespaces+0x9f/0x140 [nvme_core] nvme_do_delete_ctrl+0x5b/0xa0 [nvme_core] nvme_sysfs_delete+0x5f/0x70 [nvme_core] kernfs_fop_write_iter+0x12b/0x1c0 vfs_write+0x2a3/0x3b0 ksys_write+0x5f/0xe0 do_syscall_64+0x5c/0x90 ? syscall_exit_work+0x103/0x130 ? syscall_exit_to_user_mode+0x12/0x30 ? do_syscall_64+0x69/0x90 ? exit_to_user_mode_loop+0xd0/0x130 ? exit_to_user_mode_prepare+0xec/0x100 ? syscall_exit_to_user_mode+0x12/0x30 ? do_syscall_64+0x69/0x90 ? syscall_exit_to_user_mode+0x12/0x30 ? do_syscall_64+0x69/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f815cd3eb97 The IOCB counts are out of order and that would block any commands from going out and subsequently hang the system. Synchronize the IOCB count to be in correct order.

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