Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qedi: Fix crash while reading debugfs attribute The qedi_dbg_do_not_recover_cmd_read() function invokes sprintf() directly on a __user pointer, which results into the crash. To fix this issue, use a small local stack buffer for sprintf() and then call simple_read_from_buffer(), which in turns make the copy_to_user() call. BUG: unable to handle page fault for address: 00007f4801111000 PGD 8000000864df6067 P4D 8000000864df6067 PUD 864df7067 PMD 846028067 PTE 0 Oops: 0002 [#1] PREEMPT SMP PTI Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 06/15/2023 RIP: 0010:memcpy_orig+0xcd/0x130 RSP: 0018:ffffb7a18c3ffc40 EFLAGS: 00010202 RAX: 00007f4801111000 RBX: 00007f4801111000 RCX: 000000000000000f RDX: 000000000000000f RSI: ffffffffc0bfd7a0 RDI: 00007f4801111000 RBP: ffffffffc0bfd7a0 R08: 725f746f6e5f6f64 R09: 3d7265766f636572 R10: ffffb7a18c3ffd08 R11: 0000000000000000 R12: 00007f4881110fff R13: 000000007fffffff R14: ffffb7a18c3ffca0 R15: ffffffffc0bfd7af FS: 00007f480118a740(0000) GS:ffff98e38af00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4801111000 CR3: 0000000864b8e001 CR4: 00000000007706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> ? __die_body+0x1a/0x60 ? page_fault_oops+0x183/0x510 ? exc_page_fault+0x69/0x150 ? asm_exc_page_fault+0x22/0x30 ? memcpy_orig+0xcd/0x130 vsnprintf+0x102/0x4c0 sprintf+0x51/0x80 qedi_dbg_do_not_recover_cmd_read+0x2f/0x50 [qedi 6bcfdeeecdea037da47069eca2ba717c84a77324] full_proxy_read+0x50/0x80 vfs_read+0xa5/0x2e0 ? folio_add_new_anon_rmap+0x44/0xa0 ? set_pte_at+0x15/0x30 ? do_pte_missing+0x426/0x7f0 ksys_read+0xa5/0xe0 do_syscall_64+0x58/0x80 ? __count_memcg_events+0x46/0x90 ? count_memcg_event_mm+0x3d/0x60 ? handle_mm_fault+0x196/0x2f0 ? do_user_addr_fault+0x267/0x890 ? exc_page_fault+0x69/0x150 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f4800f20b4d

Metrics

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score:  N/A

NVD assessment not yet provided.

CVSS 2.0 Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

https://git.kernel.org/stable/c/144d76a676b630e321556965011b00e2de0b40a7

https://git.kernel.org/stable/c/21c963de2e86e88f6a8ca556bcebb8e62ab8e901

https://git.kernel.org/stable/c/28027ec8e32ecbadcd67623edb290dad61e735b5

https://git.kernel.org/stable/c/397a8990c377ee4b61d6df768e61dff9e316d46b

https://git.kernel.org/stable/c/56bec63a7fc87ad50b3373a87517dc9770eef9e0

https://git.kernel.org/stable/c/e2f433ea7d0ff77998766a088a287337fb43ad75

https://git.kernel.org/stable/c/eaddb86637669f6bad89245ee63f8fb2bfb50241

https://git.kernel.org/stable/c/fa85b016a56b9775a3fe41e5d26e666945963b46

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

scsi: qedi: Fix crash while reading debugfs attribute

The qedi_dbg_do_not_recover_cmd_read() function invokes sprintf() directly
on a __user pointer, which results into the crash.

To fix this issue, use a small local stack buffer for sprintf() and then
call simple_read_from_buffer(), which in turns make the copy_to_user()
call.

BUG: unable to handle page fault for address: 00007f4801111000
PGD 8000000864df6067 P4D 8000000864

kernel.org https://git.kernel.org/stable/c/144d76a676b630e321556965011b00e2de0b40a7 [No types assigned]

kernel.org https://git.kernel.org/stable/c/21c963de2e86e88f6a8ca556bcebb8e62ab8e901 [No types assigned]

kernel.org https://git.kernel.org/stable/c/28027ec8e32ecbadcd67623edb290dad61e735b5 [No types assigned]

kernel.org https://git.kernel.org/stable/c/397a8990c377ee4b61d6df768e61dff9e316d46b [No types assigned]

kernel.org https://git.kernel.org/stable/c/56bec63a7fc87ad50b3373a87517dc9770eef9e0 [No types assigned]

kernel.org https://git.kernel.org/stable/c/e2f433ea7d0ff77998766a088a287337fb43ad75 [No types assigned]

kernel.org https://git.kernel.org/stable/c/eaddb86637669f6bad89245ee63f8fb2bfb50241 [No types assigned]

kernel.org https://git.kernel.org/stable/c/fa85b016a56b9775a3fe41e5d26e666945963b46 [No types assigned]