Description
In the Linux kernel, the following vulnerability has been resolved: scsi: scsi_dh_alua: Fix memleak for 'qdata' in alua_activate() If alua_rtpg_queue() failed from alua_activate(), then 'qdata' is not freed, which will cause following memleak: unreferenced object 0xffff88810b2c6980 (size 32): comm "kworker/u16:2", pid 635322, jiffies 4355801099 (age 1216426.076s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 40 39 24 c1 ff ff ff ff 00 f8 ea 0a 81 88 ff ff @9$............. backtrace: [<0000000098f3a26d>] alua_activate+0xb0/0x320 [<000000003b529641>] scsi_dh_activate+0xb2/0x140 [<000000007b296db3>] activate_path_work+0xc6/0xe0 [dm_multipath] [<000000007adc9ace>] process_one_work+0x3c5/0x730 [<00000000c457a985>] worker_thread+0x93/0x650 [<00000000cb80e628>] kthread+0x1ba/0x210 [<00000000a1e61077>] ret_from_fork+0x22/0x30 Fix the problem by freeing 'qdata' in error path.
Product status
625fe857e4fac6518716f3c0ff5e5deb8ec6d238 (git) before 123483df146492ca22b503ae6dacc2ce7c3a3974
625fe857e4fac6518716f3c0ff5e5deb8ec6d238 (git) before c110051d335ef7f62ad33474b0c23997fee5bfb5
625fe857e4fac6518716f3c0ff5e5deb8ec6d238 (git) before 5c4d71424df34fc23dc5336d09394ce68c849542
625fe857e4fac6518716f3c0ff5e5deb8ec6d238 (git) before c09cdf6eb815ee35e55d6c50ac7f63db58bd20b8
625fe857e4fac6518716f3c0ff5e5deb8ec6d238 (git) before 9311e7a554dffd3823499e309a8b86a5cd1540e5
625fe857e4fac6518716f3c0ff5e5deb8ec6d238 (git) before 1c55982beb80c7d3c30278fc6cfda8496a31dbe6
625fe857e4fac6518716f3c0ff5e5deb8ec6d238 (git) before 0d89254a4320eb7de0970c478172f764125c6355
625fe857e4fac6518716f3c0ff5e5deb8ec6d238 (git) before a13faca032acbf2699293587085293bdfaafc8ae
68b275b7cbf065a8ea9b964cbb7d78d2b63c635f (git)
2b1725d1df362499f6bbd5a7e245a4090b29c2bb (git)
4.9.21 (semver) before 4.10
4.10.9 (semver) before 4.11
4.11
Any version before 4.11
4.14.312 (semver)
4.19.280 (semver)
5.4.240 (semver)
5.10.177 (semver)
5.15.105 (semver)
6.1.22 (semver)
6.2.9 (semver)
6.3 (original_commit_for_fix)
References
git.kernel.org/...c/123483df146492ca22b503ae6dacc2ce7c3a3974
git.kernel.org/...c/c110051d335ef7f62ad33474b0c23997fee5bfb5
git.kernel.org/...c/5c4d71424df34fc23dc5336d09394ce68c849542
git.kernel.org/...c/c09cdf6eb815ee35e55d6c50ac7f63db58bd20b8
git.kernel.org/...c/9311e7a554dffd3823499e309a8b86a5cd1540e5
git.kernel.org/...c/1c55982beb80c7d3c30278fc6cfda8496a31dbe6
git.kernel.org/...c/0d89254a4320eb7de0970c478172f764125c6355
git.kernel.org/...c/a13faca032acbf2699293587085293bdfaafc8ae