cbcvebase.
CVE-2024-38385
published 2024-06-25

CVE-2024-38385: In the Linux kernel, the following vulnerability has been resolved: genirq/irqdesc: Prevent use-after-free in irq_find_at_or_after() irq_find_at_or_after()…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
12.0th percentile
In the Linux kernel, the following vulnerability has been resolved: genirq/irqdesc: Prevent use-after-free in irq_find_at_or_after() irq_find_at_or_after() dereferences the interrupt descriptor which is returned by mt_find() while neither holding sparse_irq_lock nor RCU read lock, which means the descriptor can be freed between mt_find() and the dereference: CPU0 CPU1 desc = mt_find() delayed_free_desc(desc) irq_desc_get_irq(desc) The use-after-free is reported by KASAN: Call trace: irq_get_next_irq+0x58/0x84 show_stat+0x638/0x824 seq_read_iter+0x158/0x4ec proc_reg_read_iter+0x94/0x12c vfs_read+0x1e0/0x2c8 Freed by task 4471: slab_free_freelist_hook+0x174/0x1e0 __kmem_cache_free+0xa4/0x1dc kfree+0x64/0x128 irq_kobj_release+0x28/0x3c kobject_put+0xcc/0x1e0 delayed_free_desc+0x14/0x2c rcu_do_batch+0x214/0x720 Guard the access with a RCU read lock section.

Affected

10 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.9.7-1 (forky)linux 6.9.7-1 (forky)
linuxlinux
linuxlinux>= 721255b9826bd11c7a38b585905fc2dd0fb94e52 < 1c7891812d85500ae2ca4051fa5683fcf29930d81c7891812d85500ae2ca4051fa5683fcf29930d8
linuxlinux>= 721255b9826bd11c7a38b585905fc2dd0fb94e52 < d084aa022f84319f8079e30882cbcbc026af9f21d084aa022f84319f8079e30882cbcbc026af9f21
linuxlinux>= 721255b9826bd11c7a38b585905fc2dd0fb94e52 < b84a8aba806261d2f759ccedf4a2a6a80a5e55bab84a8aba806261d2f759ccedf4a2a6a80a5e55ba
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.8.0-44.446.8.0-44.44
linuxlinux_kernel>= 6.5 < 6.6.346.6.34
linuxlinux_kernel>= 6.7 < 6.9.56.9.5

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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