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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
| commit | dee4dcba78baf712cab403d47d9db319ab7f95d6 (patch) | |
| tree | 418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/deepseek-r1:14b/output/hypervisor/2311 | |
| parent | 4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff) | |
| download | qemu-analysis-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz qemu-analysis-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip | |
restructure results
Diffstat (limited to 'results/classifier/deepseek-r1:14b/output/hypervisor/2311')
| -rw-r--r-- | results/classifier/deepseek-r1:14b/output/hypervisor/2311 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:14b/output/hypervisor/2311 b/results/classifier/deepseek-r1:14b/output/hypervisor/2311 new file mode 100644 index 000000000..067d56b2a --- /dev/null +++ b/results/classifier/deepseek-r1:14b/output/hypervisor/2311 @@ -0,0 +1,16 @@ + +Possible dereference of NULL +Description of problem: +There is possible dereference of NULL using macro QEMU_LOCK_GUARD(&q->lock) in: +1) /block/nvme.c line [326](https://github.com/qemu/qemu/blob/5da72194df36535d773c8bdc951529ecd5e31707/block/nvme.c#L326) +2) /include/qemu/ratelimit.h line [45](https://github.com/qemu/qemu/blob/5da72194df36535d773c8bdc951529ecd5e31707/include/qemu/ratelimit.h#L45) +3) /include/qemu/ratelimit.h line [88](https://github.com/qemu/qemu/blob/5da72194df36535d773c8bdc951529ecd5e31707/include/qemu/ratelimit.h#L88) + + +The QEMU_MAKE_LOCKABLE(x) macro provides a special case (line [71](https://github.com/qemu/qemu/blob/5da72194df36535d773c8bdc951529ecd5e31707/include/qemu/lockable.h#L71) of the lockable.h) if NULL gets into it. Then the macro will return NULL, which will get to the input of the qemu_lockable_auto_lock() function, then to the qemu_lockable_lock() function, where NULL dereference will occur (line [95](https://github.com/qemu/qemu/blob/5da72194df36535d773c8bdc951529ecd5e31707/include/qemu/lockable.h#L95)). + +It turns out that the NULL case is provided, but not handled properly. I think a NULL check should be added. + +Found by Linux Verification Center (portal.linuxtesting.ru) with SVACE. + +Author A. Burke. |