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CVE-2022-48666— scsi: core: Fix a use-after-free

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于内存释放后重用。

CVSS 9.8 · Critical EPSS 0.78% · P55

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 65ca846a53149a1a72cd8d02e7b2e73dd545b834< 5ce8fad941233e81f2afb5b52a3fcddd3ba8732f affected
65ca846a53149a1a72cd8d02e7b2e73dd545b834< f818708eeeae793e12dc39f8984ed7732048a7d9 affected
65ca846a53149a1a72cd8d02e7b2e73dd545b834< 2e7eb4c1e8af8385de22775bd0be552f59b28c9a affected
65ca846a53149a1a72cd8d02e7b2e73dd545b834< 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 affected
5.7 affected
< 5.7 unaffected
5.10.223≤ 5.10.* unaffected
5.15.164≤ 5.15.* unaffected
… +2 more rows
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I. Basic Information for CVE-2022-48666

Vulnerability Information
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Vulnerability Title
scsi: core: Fix a use-after-free
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix a use-after-free There are two .exit_cmd_priv implementations. Both implementations use resources associated with the SCSI host. Make sure that these resources are still available when .exit_cmd_priv is called by waiting inside scsi_remove_host() until the tag set has been freed. This commit fixes the following use-after-free: ================================================================== BUG: KASAN: use-after-free in srp_exit_cmd_priv+0x27/0xd0 [ib_srp] Read of size 8 at addr ffff888100337000 by task multipathd/16727 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 print_report.cold+0x5e/0x5db kasan_report+0xab/0x120 srp_exit_cmd_priv+0x27/0xd0 [ib_srp] scsi_mq_exit_request+0x4d/0x70 blk_mq_free_rqs+0x143/0x410 __blk_mq_free_map_and_rqs+0x6e/0x100 blk_mq_free_tag_set+0x2b/0x160 scsi_host_dev_release+0xf3/0x1a0 device_release+0x54/0xe0 kobject_put+0xa5/0x120 device_release+0x54/0xe0 kobject_put+0xa5/0x120 scsi_device_dev_release_usercontext+0x4c1/0x4e0 execute_in_process_context+0x23/0x90 device_release+0x54/0xe0 kobject_put+0xa5/0x120 scsi_disk_release+0x3f/0x50 device_release+0x54/0xe0 kobject_put+0xa5/0x120 disk_release+0x17f/0x1b0 device_release+0x54/0xe0 kobject_put+0xa5/0x120 dm_put_table_device+0xa3/0x160 [dm_mod] dm_put_device+0xd0/0x140 [dm_mod] free_priority_group+0xd8/0x110 [dm_multipath] free_multipath+0x94/0xe0 [dm_multipath] dm_table_destroy+0xa2/0x1e0 [dm_mod] __dm_destroy+0x196/0x350 [dm_mod] dev_remove+0x10c/0x160 [dm_mod] ctl_ioctl+0x2c2/0x590 [dm_mod] dm_ctl_ioctl+0x5/0x10 [dm_mod] __x64_sys_ioctl+0xb4/0xf0 dm_ctl_ioctl+0x5/0x10 [dm_mod] __x64_sys_ioctl+0xb4/0xf0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x46/0xb0
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于内存释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 65ca846a53149a1a72cd8d02e7b2e73dd545b834 ~ 5ce8fad941233e81f2afb5b52a3fcddd3ba8732f -
Linux Linux 5.7 -

II. Public POCs for CVE-2022-48666

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III. Intelligence Information for CVE-2022-48666

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Other References for CVE-2022-48666 (4)

Same Patch Batch · Linux · 2024-04-28 · 40 CVEs total

CVE-2022-48652 8.8 HIGH ice: Fix crash by keep old cfg when update TCs more than queues
CVE-2022-48632 7.8 HIGH i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction()
CVE-2022-48636 7.8 HIGH s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup
CVE-2022-48637 7.8 HIGH bnxt: prevent skb UAF after handing over to PTP worker
CVE-2022-48658 7.5 HIGH mm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context.
CVE-2022-48665 7.1 HIGH exfat: fix overflow for large capacity partition
CVE-2022-48654 7.1 HIGH netfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find()
CVE-2022-48645 net: enetc: deny offload of tc-based TSN features on VF interfaces
CVE-2022-48648 sfc: fix null pointer dereference in efx_hard_start_xmit
CVE-2022-48644 net/sched: taprio: avoid disabling offload when it was never enabled
CVE-2022-48643 netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()
CVE-2022-48642 netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain()
CVE-2022-48641 netfilter: ebtables: fix memory leak when blob is malformed
CVE-2022-48640 bonding: fix NULL deref in bond_rr_gen_slave_id
CVE-2022-48639 net: sched: fix possible refcount leak in tc_new_tfilter()
CVE-2022-48638 cgroup: cgroup_get_from_id() must check the looked-up kn is a directory
CVE-2022-48635 fsdax: Fix infinite loop in dax_iomap_rw()
CVE-2022-48634 drm/gma500: Fix BUG: sleeping function called from invalid context errors
CVE-2022-48633 drm/gma500: Fix WARN_ON(lock->magic != lock) error
CVE-2022-48631 ext4: fix bug in extents parsing when eh_entries == 0 and eh_depth > 0

Showing top 20 of 40 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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