CVE-2022-49878
published 2025-05-01CVE-2022-49878: In the Linux kernel, the following vulnerability has been resolved: bpf, verifier: Fix memory leak in array reallocation for stack state If an error (NULL) is…
PriorityP417medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.19%
8.5th percentile
In the Linux kernel, the following vulnerability has been resolved:
bpf, verifier: Fix memory leak in array reallocation for stack state
If an error (NULL) is returned by krealloc(), callers of realloc_array()
were setting their allocation pointers to NULL, but on error krealloc()
does not touch the original allocation. This would result in a memory
resource leak. Instead, free the old allocation on the error handling
path.
The memory leak information is as follows as also reported by Zhengchao:
unreferenced object 0xffff888019801800 (size 256):
comm "bpf_repo", pid 6490, jiffies 4294959200 (age 17.170s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[] __kmalloc_node_track_caller+0x45/0xc0
[] krealloc+0x83/0xd0
[] realloc_array+0x82/0xe2
[] grow_stack_state+0xfb/0x186
[] check_mem_access.cold+0x141/0x1341
[] do_check_common+0x5358/0xb350
[] bpf_check.cold+0xc3/0x29d
[] bpf_prog_load+0x13db/0x2240
[] __sys_bpf+0x1605/0x4ce0
[] __x64_sys_bpf+0x75/0xb0
[] do_syscall_64+0x35/0x80
[] entry_SYSCALL_64_after_hwframe+0x63/0xcd
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.10-1 (bookworm) | linux 6.0.10-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= c69431aab67a912836e5831f03d99a819c14c9c3 < 06615967d4889b08b19ff3dda96e8b131282f73d | 06615967d4889b08b19ff3dda96e8b131282f73d |
| linux | linux | >= c69431aab67a912836e5831f03d99a819c14c9c3 < 3e210891c4a4c2d858cd6f9f61d5809af251d4df | 3e210891c4a4c2d858cd6f9f61d5809af251d4df |
| linux | linux | >= c69431aab67a912836e5831f03d99a819c14c9c3 < 42378a9ca55347102bbf86708776061d8fe3ece2 | 42378a9ca55347102bbf86708776061d8fe3ece2 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.0.10-1 | 6.0.10-1 |
| linux | linux_kernel | >= 0 < 6.0.10-1 | 6.0.10-1 |
| linux | linux_kernel | >= 0 < 6.0.10-1 | 6.0.10-1 |
| linux | linux_kernel | >= 5.14 < 5.15.79 | 5.15.79 |
| linux | linux_kernel | >= 5.16 < 6.0.9 | 6.0.9 |
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_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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GHSA
GHSA-p39f-f66f-x437: In the Linux kernel, the following vulnerability has been resolved:
bpf, verifier: Fix memory leak in array reallocation for stack state
If an error
ghsa_unreviewed·2025-05-01
CVE-2022-49878 [MEDIUM] CWE-401 GHSA-p39f-f66f-x437: In the Linux kernel, the following vulnerability has been resolved:
bpf, verifier: Fix memory leak in array reallocation for stack state
If an error
In the Linux kernel, the following vulnerability has been resolved:
bpf, verifier: Fix memory leak in array reallocation for stack state
If an error (NULL) is returned by krealloc(), callers of realloc_array()
were setting their allocation pointers to NULL, but on error krealloc()
does not touch the original allocation. This would result in a memory
resource leak. Instead, free the old allocation on the error handling
path.
The memory leak information is as follows as also reported by Zhengchao:
unreferenced object 0xffff888019801800 (size 256):
comm "bpf_repo", pid 6490, jiffies 4294959200 (age 17.170s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[] __kmalloc_nod
OSV
CVE-2022-49878: In the Linux kernel, the following vulnerability has been resolved: bpf, verifier: Fix memory leak in array reallocation for stack state If an error (
osv·2025-05-01·CVSS 5.5
CVE-2022-49878 [MEDIUM] CVE-2022-49878: In the Linux kernel, the following vulnerability has been resolved: bpf, verifier: Fix memory leak in array reallocation for stack state If an error (
In the Linux kernel, the following vulnerability has been resolved: bpf, verifier: Fix memory leak in array reallocation for stack state If an error (NULL) is returned by krealloc(), callers of realloc_array() were setting their allocation pointers to NULL, but on error krealloc() does not touch the original allocation. This would result in a memory resource leak. Instead, free the old allocation on the error handling path. The memory leak information is as follows as also reported by Zhengchao: unreferenced object 0xffff888019801800 (size 256): comm "bpf_repo", pid 6490, jiffies 4294959200 (age 17.170s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] __kmalloc_node_tr
Red Hat
kernel: bpf, verifier: Fix memory leak in array reallocation for stack state
vendor_redhat·2025-05-01·CVSS 5.5
CVE-2022-49878 [MEDIUM] CWE-401 kernel: bpf, verifier: Fix memory leak in array reallocation for stack state
kernel: bpf, verifier: Fix memory leak in array reallocation for stack state
In the Linux kernel, the following vulnerability has been resolved:
bpf, verifier: Fix memory leak in array reallocation for stack state
If an error (NULL) is returned by krealloc(), callers of realloc_array()
were setting their allocation pointers to NULL, but on error krealloc()
does not touch the original allocation. This would result in a memory
resource leak. Instead, free the old allocation on the error handling
path.
The memory leak information is as follows as also reported by Zhengchao:
unreferenced object 0xffff888019801800 (size 256):
comm "bpf_repo", pid 6490, jiffies 4294959200 (age 17.170s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00
Debian
CVE-2022-49878: linux - In the Linux kernel, the following vulnerability has been resolved: bpf, verifi...
vendor_debian·2022·CVSS 5.5
CVE-2022-49878 [MEDIUM] CVE-2022-49878: linux - In the Linux kernel, the following vulnerability has been resolved: bpf, verifi...
In the Linux kernel, the following vulnerability has been resolved: bpf, verifier: Fix memory leak in array reallocation for stack state If an error (NULL) is returned by krealloc(), callers of realloc_array() were setting their allocation pointers to NULL, but on error krealloc() does not touch the original allocation. This would result in a memory resource leak. Instead, free the old allocation on the error handling path. The memory leak information is as follows as also reported by Zhengchao: unreferenced object 0xffff888019801800 (size 256): comm "bpf_repo", pid 6490, jiffies 4294959200 (age 17.170s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] __kmalloc_node_tr
No detection rules found.
No public exploits indexed.
2025-05-01
Published