Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() There is a memory leaks problem reported by kmemleak: unreferenced object 0xffff888102007a00 (size 128): comm "ubirsvol", pid 32090, jiffies 4298464136 (age 2361.231s) hex dump (first 32 bytes): ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ backtrace: [<ffffffff8176cecd>] __kmalloc+0x4d/0x150 [<ffffffffa02a9a36>] ubi_eba_create_table+0x76/0x170 [ubi] [<ffffffffa029764e>] ubi_resize_volume+0x1be/0xbc0 [ubi] [<ffffffffa02a3321>] ubi_cdev_ioctl+0x701/0x1850 [ubi] [<ffffffff81975d2d>] __x64_sys_ioctl+0x11d/0x170 [<ffffffff83c142a5>] do_syscall_64+0x35/0x80 [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 This is due to a mismatch between create and destroy interfaces, and in detail that "new_eba_tbl" created by ubi_eba_create_table() but destroyed by kfree(), while will causing "new_eba_tbl->entries" not freed. Fix it by replacing kfree(new_eba_tbl) with ubi_eba_destroy_table(new_eba_tbl)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 799dca34ac543485f581bd8464ec9b1c4f0f852a before 09780a44093b53f9cbca76246af2e4ff0884e512; affected 799dca34ac543485f581bd8464ec9b1c4f0f852a before 26ec2d66aecab8ff997b912c20247fedba4f5740; affected 799dca34ac543485f581bd8464ec9b1c4f0f852a before 07b60f7452d2fa731737552937cb81821919f874; affected 799dca34ac543485f581bd8464ec9b1c4f0f852a before 31d60afe2cc2b712dbefcaab6b7d6a47036f844e; affected 799dca34ac543485f581bd8464ec9b1c4f0f852a before 95a72417dd13ebcdcb1bd0c5d4d15f7c5bfbb288; affected 799dca34ac543485f581bd8464ec9b1c4f0f852a before 27b760b81951d8d5e5c952a696af8574052b0709; affected 799dca34ac543485f581bd8464ec9b1c4f0f852a before 5c0c81a313492b83bd0c038b8839b0e04eb87563; affected 799dca34ac543485f581bd8464ec9b1c4f0f852a before 1e591ea072df7211f64542a09482b5f81cb3ad27 |
| Linux / Linux | affected 4.9; unaffected 0 before 4.9; unaffected 4.14.308 through 4.14.*; unaffected 4.19.276 through 4.19.*; unaffected 5.4.235 through 5.4.*; unaffected 5.10.173 through 5.10.*; unaffected 5.15.100 through 5.15.*; unaffected 6.1.18 through 6.1.*; unaffected 6.2.5 through 6.2.*; unaffected 6.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/09780a44093b53f9cbca76246af2e4ff0884e512
- https://git.kernel.org/stable/c/26ec2d66aecab8ff997b912c20247fedba4f5740
- https://git.kernel.org/stable/c/07b60f7452d2fa731737552937cb81821919f874
- https://git.kernel.org/stable/c/31d60afe2cc2b712dbefcaab6b7d6a47036f844e
- https://git.kernel.org/stable/c/95a72417dd13ebcdcb1bd0c5d4d15f7c5bfbb288
- https://git.kernel.org/stable/c/27b760b81951d8d5e5c952a696af8574052b0709
- https://git.kernel.org/stable/c/5c0c81a313492b83bd0c038b8839b0e04eb87563
- https://git.kernel.org/stable/c/1e591ea072df7211f64542a09482b5f81cb3ad27
ADP enrichment
No English description supplied.
No references supplied.