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CVE Vulnerability Details :

CVE-2022-49670

PUBLISHED

More Info Official Page

Assigner-Linux

Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published At-26 Feb, 2025 | 02:24

Updated At-04 May, 2025 | 08:42

▼CVE Numbering Authority (CNA)

linux/dim: Fix divide by 0 in RDMA DIM

In the Linux kernel, the following vulnerability has been resolved: linux/dim: Fix divide by 0 in RDMA DIM Fix a divide 0 error in rdma_dim_stats_compare() when prev->cpe_ratio == 0. CallTrace: Hardware name: H3C R4900 G3/RS33M2C9S, BIOS 2.00.37P21 03/12/2020 task: ffff880194b78000 task.stack: ffffc90006714000 RIP: 0010:backport_rdma_dim+0x10e/0x240 [mlx_compat] RSP: 0018:ffff880c10e83ec0 EFLAGS: 00010202 RAX: 0000000000002710 RBX: ffff88096cd7f780 RCX: 0000000000000064 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 000000001d7c6c09 R13: ffff88096cd7f780 R14: ffff880b174fe800 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff880c10e80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000a0965b00 CR3: 000000000200a003 CR4: 00000000007606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <IRQ> ib_poll_handler+0x43/0x80 [ib_core] irq_poll_softirq+0xae/0x110 __do_softirq+0xd1/0x28c irq_exit+0xde/0xf0 do_IRQ+0x54/0xe0 common_interrupt+0x8f/0x8f </IRQ> ? cpuidle_enter_state+0xd9/0x2a0 ? cpuidle_enter_state+0xc7/0x2a0 ? do_idle+0x170/0x1d0 ? cpu_startup_entry+0x6f/0x80 ? start_secondary+0x1b9/0x210 ? secondary_startup_64+0xa5/0xb0 Code: 0f 87 e1 00 00 00 8b 4c 24 14 44 8b 43 14 89 c8 4d 63 c8 44 29 c0 99 31 d0 29 d0 31 d2 48 98 48 8d 04 80 48 8d 04 80 48 c1 e0 02 <49> f7 f1 48 83 f8 0a 0f 86 c1 00 00 00 44 39 c1 7f 10 48 89 df RIP: backport_rdma_dim+0x10e/0x240 [mlx_compat] RSP: ffff880c10e83ec0

Affected Products

Vendor

Linux Kernel Organization, Inc

Product

Linux

Repo

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Program Files

include/linux/dim.h

Default Status

unaffected

Versions

Affected

From f4915455dcf07c4f237d6160a4b6adb0575d2909 before 5af106f8e072aebd88b95e164a08fa320651a99a (git)
From f4915455dcf07c4f237d6160a4b6adb0575d2909 before fae2a9fb1eaf348ad8732f90d42ebbb971bd7e95 (git)
From f4915455dcf07c4f237d6160a4b6adb0575d2909 before 0b6e0eb5c45e79e9095de2498cc0ca5ec563fc5e (git)
From f4915455dcf07c4f237d6160a4b6adb0575d2909 before 7c1963391af51ee322378d1b2849c60e9037f069 (git)
From f4915455dcf07c4f237d6160a4b6adb0575d2909 before 0fe3dbbefb74a8575f61d7801b08dbc50523d60d (git)

Vendor

Linux Kernel Organization, Inc

Product

Linux

Repo

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Program Files

include/linux/dim.h

Default Status

affected

Versions

Affected

Unaffected

From 0 before 5.3 (semver)
From 5.4.204 through 5.4.* (semver)
From 5.10.129 through 5.10.* (semver)
From 5.15.53 through 5.15.* (semver)
From 5.18.10 through 5.18.* (semver)
From 5.19 through * (original_commit_for_fix)

References

Hyperlink	Resource
https://git.kernel.org/stable/c/5af106f8e072aebd88b95e164a08fa320651a99a	N/A
https://git.kernel.org/stable/c/fae2a9fb1eaf348ad8732f90d42ebbb971bd7e95	N/A
https://git.kernel.org/stable/c/0b6e0eb5c45e79e9095de2498cc0ca5ec563fc5e	N/A
https://git.kernel.org/stable/c/7c1963391af51ee322378d1b2849c60e9037f069	N/A
https://git.kernel.org/stable/c/0fe3dbbefb74a8575f61d7801b08dbc50523d60d	N/A

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