Skip to content
CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2022-49381

jffs2: fix memory leak in jffs2_do_fill_super

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: jffs2: fix memory leak in jffs2_do_fill_super If jffs2_iget() or d_make_root() in jffs2_do_fill_super() returns an error, we can observe the following kmemleak report: -------------------------------------------- unreferenced object 0xffff888105a65340 (size 64): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) 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: [<ffffffff859c45e5>] kmem_cache_alloc_trace+0x475/0x8a0 [<ffffffff86160146>] jffs2_sum_init+0x96/0x1a0 [<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120 [<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810 [<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0 [...] unreferenced object 0xffff8881bd7f0000 (size 65536): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [<ffffffff858579ba>] kmalloc_order+0xda/0x110 [<ffffffff85857a11>] kmalloc_order_trace+0x21/0x130 [<ffffffff859c2ed1>] __kmalloc+0x711/0x8a0 [<ffffffff86160189>] jffs2_sum_init+0xd9/0x1a0 [<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120 [<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810 [<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0 [...] -------------------------------------------- This is because the resources allocated in jffs2_sum_init() are not released. Call jffs2_sum_exit() to release these resources to solve the problem.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • e631ddba588783edd521c5a89f7b2902772fb691 to < 4ba7bbeab8009faf3a726e565d98816593ddd5b0affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < 4da8763a3d2b684c773b72ed80fad40bc264bc40affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < 28048a4cf3813b7cf5cc8cce629dfdc7951cb1c2affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < d3a4fff1e7e408c32649030daa7c2c42a7e19a95affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < 3252d327f977b14663a10967f3b0930d6c325687affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < ecc53e58596542791e82eff00702f8af7a313f70affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < cf9db013e167bc8fc2ecd7a13ed97a37df0c9dabaffected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < 69295267c481545f636b69ff341b8db75aa136b9affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < c14adb1cf70a984ed081c67e9d27bc3caad9537caffected

Linux Linux

Default version status: affected

  • 2.6.15affected
  • 0 to < 2.6.15unaffected
  • 4.9.318 to ≤ 4.9.*unaffected
  • 4.14.283 to ≤ 4.14.*unaffected
  • 4.19.247 to ≤ 4.19.*unaffected
  • 5.4.198 to ≤ 5.4.*unaffected
  • 5.10.122 to ≤ 5.10.*unaffected
  • 5.15.47 to ≤ 5.15.*unaffected
  • 5.17.15 to ≤ 5.17.*unaffected
  • 5.18.4 to ≤ 5.18.*unaffected
  • 5.19 to ≤ *unaffected

References