CVE-2022-49925 (GCVE-0-2022-49925)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:11 – Updated: 2025-10-01 14:57
VLAI?
Title
RDMA/core: Fix null-ptr-deref in ib_core_cleanup()
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix null-ptr-deref in ib_core_cleanup() KASAN reported a null-ptr-deref error: KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] CPU: 1 PID: 379 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) RIP: 0010:destroy_workqueue+0x2f/0x740 RSP: 0018:ffff888016137df8 EFLAGS: 00000202 ... Call Trace: ib_core_cleanup+0xa/0xa1 [ib_core] __do_sys_delete_module.constprop.0+0x34f/0x5b0 do_syscall_64+0x3a/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa1a0d221b7 ... It is because the fail of roce_gid_mgmt_init() is ignored: ib_core_init() roce_gid_mgmt_init() gid_cache_wq = alloc_ordered_workqueue # fail ... ib_core_cleanup() roce_gid_mgmt_cleanup() destroy_workqueue(gid_cache_wq) # destroy an unallocated wq Fix this by catching the fail of roce_gid_mgmt_init() in ib_core_init().
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 03db3a2d81e6e84f3ed3cb9e087cae17d762642b , < af8fb5a0600e9ae29950e9422a032c3c22649ee5 (git)
Affected: 03db3a2d81e6e84f3ed3cb9e087cae17d762642b , < d360e875c011a005628525bf290322058927e7dc (git)
Affected: 03db3a2d81e6e84f3ed3cb9e087cae17d762642b , < 6b3d5dcb12347f3518308c2c9d2cf72453a3e1e5 (git)
Affected: 03db3a2d81e6e84f3ed3cb9e087cae17d762642b , < ab817f75e5e0fa58d9be0825da6a7b7d8a1fa1d9 (git)
Affected: 03db3a2d81e6e84f3ed3cb9e087cae17d762642b , < 07c0d131cc0fe1f3981a42958fc52d573d303d89 (git)
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    Linux Linux Affected: 4.3
Unaffected: 0 , < 4.3 (semver)
Unaffected: 5.4.224 , ≤ 5.4.* (semver)
Unaffected: 5.10.154 , ≤ 5.10.* (semver)
Unaffected: 5.15.78 , ≤ 5.15.* (semver)
Unaffected: 6.0.8 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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