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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2022-49277

jffs2: fix memory leak in jffs2_do_mount_fs

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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_mount_fs If jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error, we can observe the following kmemleak report: -------------------------------------------- unreferenced object 0xffff88811b25a640 (size 64): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) 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: [<ffffffffa493be24>] kmem_cache_alloc_trace+0x584/0x880 [<ffffffffa5423a06>] jffs2_sum_init+0x86/0x130 [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0 [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30 [<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0 [...] unreferenced object 0xffff88812c760000 (size 65536): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) 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: [<ffffffffa493a449>] __kmalloc+0x6b9/0x910 [<ffffffffa5423a57>] jffs2_sum_init+0xd7/0x130 [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0 [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30 [<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0 [...] -------------------------------------------- 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 < 2a9d8184458562e6bf2f40d0e677fc85e2dd3834affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < 9a0f6610c7daedd2eace430beeb08a8b7ac80699affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < dbe0d0521eaa6a3d235517319266c539bb5c5112affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < 0978e9af4559a171ac7a74a1b3ef21804b0a0fa9affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < 607d3aab7349f18e0d9dba4100d09d16fe27cacaaffected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < 4392e8aeebc5a4f8073620bccba7de1b1f6d7c88affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < 5f34310d1376ca5b2ed798258def2c2ab3cc6699affected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < c94128470e6fe53d9bd9d16d2d3271813f9d37afaffected
  • e631ddba588783edd521c5a89f7b2902772fb691 to < d051cef784de4d54835f6b6836d98a8f6935772caffected

Linux Linux

Default version status: affected

  • 2.6.15affected
  • 0 to < 2.6.15unaffected
  • 4.9.311 to ≤ 4.9.*unaffected
  • 4.14.276 to ≤ 4.14.*unaffected
  • 4.19.238 to ≤ 4.19.*unaffected
  • 5.4.189 to ≤ 5.4.*unaffected
  • 5.10.110 to ≤ 5.10.*unaffected
  • 5.15.33 to ≤ 5.15.*unaffected
  • 5.16.19 to ≤ 5.16.*unaffected
  • 5.17.2 to ≤ 5.17.*unaffected
  • 5.18 to ≤ *unaffected

References