Debian: CVE-2022-48823: linux -- security update

Debian: CVE-2022-48823: linux -- security update

Severity

4

CVSS

(AV:L/AC:M/Au:N/C:P/I:P/A:P)

Published

07/30/2024

Created

07/31/2024

Added

07/30/2024

Modified

07/31/2024

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qedf: Fix refcount issue when LOGO is received during TMF Hung task call trace was seen during LOGO processing. [974.309060] [0000:00:00.0]:[qedf_eh_device_reset:868]: 1:0:2:0: LUN RESET Issued... [974.309065] [0000:00:00.0]:[qedf_initiate_tmf:2422]: tm_flags 0x10 sc_cmd 00000000c16b930f op = 0x2a target_id = 0x2 lun=0 [974.309178] [0000:00:00.0]:[qedf_initiate_tmf:2431]: portid=016900 tm_flags =LUN RESET [974.309222] [0000:00:00.0]:[qedf_initiate_tmf:2438]: orig io_req = 00000000ec78df8f xid = 0x180 ref_cnt = 1. [974.309625] host1: rport 016900: Received LOGO request while in state Ready [974.309627] host1: rport 016900: Delete port [974.309642] host1: rport 016900: work event 3 [974.309644] host1: rport 016900: lld callback ev 3 [974.313243] [0000:61:00.2]:[qedf_execute_tmf:2383]:1: fcport is uploading, not executing flush. [974.313295] [0000:61:00.2]:[qedf_execute_tmf:2400]:1: task mgmt command success... [984.031088] INFO: task jbd2/dm-15-8:7645 blocked for more than 120 seconds. [984.031136] Not tainted 4.18.0-305.el8.x86_64 #1 [984.031166] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [984.031209] jbd2/dm-15-8D076452 0x80004080 [984.031212] Call Trace: [984.031222]__schedule+0x2c4/0x700 [984.031230]? unfreeze_partials.isra.83+0x16e/0x1a0 [984.031233]? bit_wait_timeout+0x90/0x90 [984.031235]schedule+0x38/0xa0 [984.031238]io_schedule+0x12/0x40 [984.031240]bit_wait_io+0xd/0x50 [984.031243]__wait_on_bit+0x6c/0x80 [984.031248]? free_buffer_head+0x21/0x50 [984.031251]out_of_line_wait_on_bit+0x91/0xb0 [984.031257]? init_wait_var_entry+0x50/0x50 [984.031268]jbd2_journal_commit_transaction+0x112e/0x19f0 [jbd2] [984.031280]kjournald2+0xbd/0x270 [jbd2] [984.031284]? finish_wait+0x80/0x80 [984.031291]? commit_timeout+0x10/0x10 [jbd2] [984.031294]kthread+0x116/0x130 [984.031300]? kthread_flush_work_fn+0x10/0x10 [984.031305]ret_from_fork+0x1f/0x40 There was a ref count issue when LOGO is received during TMF. This leads to one of the I/Os hanging with the driver. Fix the ref count.

Solution(s)

• debian-upgrade-linux

References

• https://attackerkb.com/topics/cve-2022-48823
• CVE - 2022-48823