5.5

CVE-2023-53030

octeontx2-pf: Avoid use of GFP_KERNEL in atomic context

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

octeontx2-pf: Avoid use of GFP_KERNEL in atomic context

Using GFP_KERNEL in preemption disable context, causing below warning
when CONFIG_DEBUG_ATOMIC_SLEEP is enabled.

[   32.542271] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274
[   32.550883] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1, name: swapper/0
[   32.558707] preempt_count: 1, expected: 0
[   32.562710] RCU nest depth: 0, expected: 0
[   32.566800] CPU: 3 PID: 1 Comm: swapper/0 Tainted: G        W          6.2.0-rc2-00269-gae9dcb91c606 #7
[   32.576188] Hardware name: Marvell CN106XX board (DT)
[   32.581232] Call trace:
[   32.583670]  dump_backtrace.part.0+0xe0/0xf0
[   32.587937]  show_stack+0x18/0x30
[   32.591245]  dump_stack_lvl+0x68/0x84
[   32.594900]  dump_stack+0x18/0x34
[   32.598206]  __might_resched+0x12c/0x160
[   32.602122]  __might_sleep+0x48/0xa0
[   32.605689]  __kmem_cache_alloc_node+0x2b8/0x2e0
[   32.610301]  __kmalloc+0x58/0x190
[   32.613610]  otx2_sq_aura_pool_init+0x1a8/0x314
[   32.618134]  otx2_open+0x1d4/0x9d0

To avoid use of GFP_ATOMIC for memory allocation, disable preemption
after all memory allocation is done.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.15.87 < 5.15.91
Linux ≫ Linux Kernel Version >= 6.0.19 < 6.1
Linux ≫ Linux Kernel Version >= 6.1.5 < 6.1.8
Linux ≫ Linux Kernel Version6.2 Updaterc3
Linux ≫ Linux Kernel Version6.2 Updaterc4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.034
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

https://git.kernel.org/stable/c/2827c4eb429db64befdca11362e2b1c5f524f6ba
Patch
https://git.kernel.org/stable/c/1eb57b87f106c90cee6b2a56a10f2e29c7a25f3e
Patch
https://git.kernel.org/stable/c/87b93b678e95c7d93fe6a55b0e0fbda26d8c7760
Patch