CVE: CVE-2024-26742
Published: 2024-04-03
Description: In the Linux kernel, the following vulnerability has been resolved:

scsi: smartpqi: Fix disable_managed_interrupts

Correct blk-mq registration issue with module parameter
disable_managed_interrupts enabled.

When we turn off the default PCI_IRQ_AFFINITY flag, the driver needs to
register with blk-mq using blk_mq_map_queues(). The driver is currently
calling blk_mq_pci_map_queues() which results in a stack trace and possibly
undefined behavior.

Stack Trace:
[    7.860089] scsi host2: smartpqi
[    7.871934] WARNING: CPU: 0 PID: 238 at block/blk-mq-pci.c:52 blk_mq_pci_map_queues+0xca/0xd0
[    7.889231] Modules linked in: sd_mod t10_pi sg uas smartpqi(+) crc32c_intel scsi_transport_sas usb_storage dm_mirror dm_region_hash dm_log dm_mod ipmi_devintf ipmi_msghandler fuse
[    7.924755] CPU: 0 PID: 238 Comm: kworker/0:3 Not tainted 4.18.0-372.88.1.el8_6_smartpqi_test.x86_64 #1
[    7.944336] Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 03/08/2022
[    7.963026] Workqueue: events work_for_cpu_fn
[    7.978275] RIP: 0010:blk_mq_pci_map_queues+0xca/0xd0
[    7.978278] Code: 48 89 de 89 c7 e8 f6 0f 4f 00 3b 05 c4 b7 8e 01 72 e1 5b 31 c0 5d 41 5c 41 5d 41 5e 41 5f e9 7d df 73 00 31 c0 e9 76 df 73 00 <0f> 0b eb bc 90 90 0f 1f 44 00 00 41 57 49 89 ff 41 56 41 55 41 54
[    7.978280] RSP: 0018:ffffa95fc3707d50 EFLAGS: 00010216
[    7.978283] RAX: 00000000ffffffff RBX: [PII_REDACTED] RCX: [PII_REDACTED]
[    7.978284] RDX: [PII_REDACTED] RSI: [PII_REDACTED] RDI: ffff9190c32d4310
[    7.978286] RBP: [PII_REDACTED] R08: ffffa95fc3707d38 R09: ffff91929b81ac00
[    7.978287] R10: [PII_REDACTED] R11: ffffa95fc3707ac0 R12: [PII_REDACTED]
[    7.978288] R13: ffff9190c32d4000 R14: 00000000ffffffff R15: ffff9190c4c950a8
[    7.978290] FS:  [PII_REDACTED](0000) GS:ffff9193efc00000(0000) knlGS:[PII_REDACTED]
[    7.978292] CS:  0010 DS: 0000 ES: 0000 CR0: [PII_REDACTED]
[    8.172814] CR2: 000055d11166c000 CR3: 00000002dae10002 CR4:[PII_REDACTED]7706f0
[    8.172816] DR0: [PII_REDACTED] DR1: [PII_REDACTED] DR2: [PII_REDACTED]
[    8.172817] DR3: [PII_REDACTED] DR6: 00000000fffe0ff0 DR7: [PII_REDACTED]
[    8.172818] PKRU: 55555554
[    8.172819] Call Trace:
[    8.172823]  blk_mq_alloc_tag_set+0x12e/0x310
[    8.264339]  scsi_add_host_with_dma.cold.9+0x30/0x245
[    8.279302]  pqi_ctrl_init+0xacf/0xc8e [smartpqi]
[    8.294085]  ? pqi_pci_probe+0x480/0x4c8 [smartpqi]
[    8.309015]  pqi_pci_probe+0x480/0x4c8 [smartpqi]
[    8.323286]  local_pci_probe+0x42/0x80
[    8.337855]  work_for_cpu_fn+0x16/0x20
[    8.351193]  process_one_work+0x1a7/0x360
[    8.364462]  ? create_worker+0x1a0/0x1a0
[    8.379252]  worker_thread+0x1ce/0x390
[    8.392623]  ? create_worker+0x1a0/0x1a0
[    8.406295]  kthread+0x10a/0x120
[    8.418428]  ? set_kthread_struct+0x50/0x50
[    8.431532]  ret_from_fork+0x1f/0x40
[    8.444137] ---[ end trace 1bf0173d39354506 ]---
CVSS Score: 7.8 (HIGH)
CWE: CWE-787
References: https://git.kernel.org/stable/c/3c31b18a8dd8b7bf36af1cd723d455853b8f94fe; https://git.kernel.org/stable/c/4f5b15c15e6016efb3e14582d02cc4ddf57227df; https://git.kernel.org/stable/c/5761eb9761d2d5fe8248a9b719efc4d8baf1f24a