7.8

CVE-2024-53227

In the Linux kernel, the following vulnerability has been resolved:

scsi: bfa: Fix use-after-free in bfad_im_module_exit()

BUG: KASAN: slab-use-after-free in __lock_acquire+0x2aca/0x3a20
Read of size 8 at addr ffff8881082d80c8 by task modprobe/25303

Call Trace:
 <TASK>
 dump_stack_lvl+0x95/0xe0
 print_report+0xcb/0x620
 kasan_report+0xbd/0xf0
 __lock_acquire+0x2aca/0x3a20
 lock_acquire+0x19b/0x520
 _raw_spin_lock+0x2b/0x40
 attribute_container_unregister+0x30/0x160
 fc_release_transport+0x19/0x90 [scsi_transport_fc]
 bfad_im_module_exit+0x23/0x60 [bfa]
 bfad_init+0xdb/0xff0 [bfa]
 do_one_initcall+0xdc/0x550
 do_init_module+0x22d/0x6b0
 load_module+0x4e96/0x5ff0
 init_module_from_file+0xcd/0x130
 idempotent_init_module+0x330/0x620
 __x64_sys_finit_module+0xb3/0x110
 do_syscall_64+0xc1/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
 </TASK>

Allocated by task 25303:
 kasan_save_stack+0x24/0x50
 kasan_save_track+0x14/0x30
 __kasan_kmalloc+0x7f/0x90
 fc_attach_transport+0x4f/0x4740 [scsi_transport_fc]
 bfad_im_module_init+0x17/0x80 [bfa]
 bfad_init+0x23/0xff0 [bfa]
 do_one_initcall+0xdc/0x550
 do_init_module+0x22d/0x6b0
 load_module+0x4e96/0x5ff0
 init_module_from_file+0xcd/0x130
 idempotent_init_module+0x330/0x620
 __x64_sys_finit_module+0xb3/0x110
 do_syscall_64+0xc1/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 25303:
 kasan_save_stack+0x24/0x50
 kasan_save_track+0x14/0x30
 kasan_save_free_info+0x3b/0x60
 __kasan_slab_free+0x38/0x50
 kfree+0x212/0x480
 bfad_im_module_init+0x7e/0x80 [bfa]
 bfad_init+0x23/0xff0 [bfa]
 do_one_initcall+0xdc/0x550
 do_init_module+0x22d/0x6b0
 load_module+0x4e96/0x5ff0
 init_module_from_file+0xcd/0x130
 idempotent_init_module+0x330/0x620
 __x64_sys_finit_module+0xb3/0x110
 do_syscall_64+0xc1/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Above issue happens as follows:

bfad_init
  error = bfad_im_module_init()
    fc_release_transport(bfad_im_scsi_transport_template);
  if (error)
    goto ext;

ext:
  bfad_im_module_exit();
    fc_release_transport(bfad_im_scsi_transport_template);
    --> Trigger double release

Don't call bfad_im_module_exit() if bfad_im_module_init() failed.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.32 < 4.19.325
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.287
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.231
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.174
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.120
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.64
Linux ≫ Linux Kernel Version >= 6.7 < 6.11.11
Linux ≫ Linux Kernel Version >= 6.12 < 6.12.2
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.13
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.